23187647-Pdms-Design

pdms1131/man31/doc1Issue 181200

PDMSDESIGN

Reference ManualPart 3: Elements and Attributes

Version 11.3

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PDMS DESIGN Reference Manual Contents-iPart 3: Elements and AttributesVersion 11.3

Contents

1 Introduction ...................................................................................................1-11.1 About the DESIGN Reference Manual ...................................................................1-11.2 Organisation of the DESIGN Reference Manual ...................................................1-11.3 Organisation of this Manual ...................................................................................1-2

2 The Design Database Hierarchy ..................................................................2-1

3 Introduction to Attributes .............................................................................3-13.1 Attribute Types........................................................................................................3-2

4 Administrative and Reference Elements.....................................................4-14.1 Administrative Elements ........................................................................................4-2

World Element (WORLD)........................................................................................4-2Site Element (SITE) ................................................................................................4-3Zone Element (ZONE) .............................................................................................4-4Group World Element (GPWL) ...............................................................................4-5Group Element (GROUP)........................................................................................4-6General Text Element (TEXT) ................................................................................4-7Ground Model Element (GRDMODEL) ..................................................................4-8Site Boundaries and Roadways Element (BOUNDARY) ......................................4-9Routing Plane Element (RPLANE).......................................................................4-10Penalty or Preferred Volume Element (PVOLUME) ...........................................4-11Datum Point Element (DATUM) ..........................................................................4-12

5 Equipment and Civils Elements...................................................................5-15.1 The Main Equipment and Civils Elements ............................................................5-2

Equipment Element (EQUIPMENT) ......................................................................5-2Process Subequipment Element (SUBEQUIPMENT) ......................................... 5-3Structure Element (STRUCTURE).........................................................................5-4Pipe Track Element (PTRACK) ..............................................................................5-5Substructure Element (SUBSTRUCTURE) ......................................................... 5-6

5.2 The Primitive Modelling Elements .........................................................................5-7Nozzle Element (NOZZ)...........................................................................................5-8BOX Element (BOX)..............................................................................................5-10Cylinder Element (CYLI) ......................................................................................5-11CONE Element .....................................................................................................5-12Snout Element (SNOU).........................................................................................5-13DISH Element .......................................................................................................5-14Circular Torus Element (CTOR) ...........................................................................5-15Rectangular Torus Element (RTOR).....................................................................5-16Pyramid Element (PYRA) .....................................................................................5-17Slope-Bottom Cylinder Element (SLCY) ..............................................................5-18Extrusion Element (EXTRU) ................................................................................5-19

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Solid of Revolution (REVO) ...................................................................................5-20Loop Element (LOOP) ...........................................................................................5-21Vertex Element (VERT).........................................................................................5-22Polyhedron Element (POHE) ................................................................................5-23Polygon Element (POGO)......................................................................................5-24Drawn Line Element (DRAWI) .............................................................................5-25Point Element (POINT).........................................................................................5-27Invisible Point Element (IPOINT) ........................................................................5-28Tangent Point Element (TANPOINT) ..................................................................5-29

5.3 Holes in Primitive Elements .................................................................................5-30Negative Box Element (NBOX).............................................................................5-31Negative Cylinder Element (NCYL) .....................................................................5-32Negative Cone Element (NCON) ..........................................................................5-33Negative Snout Element (NSNO) .........................................................................5-34Negative Dish Element (NDIS).............................................................................5-35Negative Circular Torus Element (NCTO) ...........................................................5-36Negative Rectangular Torus Element (NRTO).....................................................5-37Negative Slope-Bottomed Cylinder Element (NSLC)...........................................5-38Negative Pyramid Element (NPYR) .....................................................................5-39Negative Extrusion Element (NXTR) ...................................................................5-40Negative Solid of Revolution (NREV) ...................................................................5-41Loop Element (LOOP) ...........................................................................................5-42Vertex Element (VERT).........................................................................................5-43

5.4 Elements for Connecting Equipment to Steelwork ..............................................5-44Equipment Load Point Element (LOAP) ..............................................................5-44

6 The Structural Elements...............................................................................6-16.1 The Structural Design Elements ............................................................................6-2

Structure Element (STRUCTURE).........................................................................6-2Framework Element (FRMW).................................................................................6-3Subframework Element (SBFR)..............................................................................6-4Primary Node Element (PNODE) ...........................................................................6-5Primary Joint Element (PJOINT)...........................................................................6-6Structural Section Element (SCTN) .......................................................................6-8Generic Section Element (GENSEC) ....................................................................6-10Spine Element (SPINE).........................................................................................6-12Spine Point Element (POINSP) ............................................................................6-13Curve Element (CURVE) ......................................................................................6-14Justification Line Datum Element (JLDATUM)................................................ 6-15Pline Datum Element (PLDATUM)......................................................................6-16Secondary Node Element (SNODE)......................................................................6-17Secondary Joint Element (SJOINT) .....................................................................6-18Primary Compound Joint Element (PCOJ) ..........................................................6-20Secondary Compound Joint Element (SCOJ) ..................................................... 6-21SubJoint Element (SUBJ) .....................................................................................6-22Fitting Element (FITT)..........................................................................................6-24Compound Fitting Element (CMFI)......................................................................6-26Subfitting Element (SBFI) ....................................................................................6-28Generic Fixing Element (FIXING)........................................................................6-29Routing Plane Group (RPLG)................................................................................6-30

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Routing Plane Element (RPLANE).......................................................................6-31Panel Element (PANEL) .......................................................................................6-32Panel Loop Element (PLOO).................................................................................6-34Panel Vertex Element (PAVE) ..............................................................................6-35Panel Linear Joint Element (PALJ)......................................................................6-36Section Linear Joint Element (SELJ) ...................................................................6-37Section Vertex Element (SEVE)............................................................................6-38Panel Fitting Element (PFIT) ...............................................................................6-39Panel Cofitting Element (COFI) ...........................................................................6-40Compound Panel Fitting Element (CMPF) ..........................................................6-41

6.2 The Stress Analysis Elements...............................................................................6-42Load Case Descriptor Element (LCDE) ................................................................6-43Nodal Release Element (RELEASE).....................................................................6-44Nodal Load Element (NOLO)................................................................................6-45Nodal Displacement Element (NODI) ..................................................................6-46Section Point Load Element (SPLO).....................................................................6-47Section Distributed Load Element (SDLO) ..........................................................6-48

7 The Piping Elements.....................................................................................7-17.1 The Main Piping Elements......................................................................................7-2

Pipe Element (PIPE) ...............................................................................................7-2Branch Element (BRANCH) ...................................................................................7-4Branch Head and Tail .............................................................................................7-7Restraint Element (RESTRAINT) ..........................................................................7-8Pipe Hanger Element (HANGER)...........................................................................7-9

7.2 The Hanger Components.......................................................................................7-11Pipe Clamp Element (PCLAMP)...........................................................................7-11Steel Clamp Element (SCLAMP) ..........................................................................7-12Hanger Element (HELEMENT)............................................................................7-13

7.3 Piping Components................................................................................................7-14Attachment Point Element (ATTA) ......................................................................7-14Bend Element (BEND) ..........................................................................................7-16Cap Element (CAP) ...............................................................................................7-18Closure Element (CLOS) .......................................................................................7-19Coupling Element (COUPLING)...........................................................................7-20Cross Element (CROSS)........................................................................................7-21Duct Element (DUCT) ...........................................................................................7-23Elbow Element (ELBOW)......................................................................................7-24Blind Flange Element (FBLIND)..........................................................................7-26Filter Element (FILTER).......................................................................................7-27Flange Element (FLANGE)...................................................................................7-29Fixed Length Tube Element (FTUBE)..................................................................7-31Gasket Element (GASKET)...................................................................................7-33Instrument Element (INSTRUMENT) .................................................................7-35Lap-Joint Stub-End Element (LJSE)....................................................................7-37Olet Element (OLET) ............................................................................................7-39General Piping Component Element (PCOMPONENT) .................................... 7-41Reducer Element (REDUCER)..............................................................................7-43Standard Hook-Up Element (SHU) ......................................................................7-44Tee Element (TEE) ................................................................................................7-46

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Trap Element (TRAP)............................................................................................7-48Union Element (UNION) ......................................................................................7-50Valve Element (VALVE)........................................................................................7-52Vent Element (VENT) ...........................................................................................7-54Four-Way Valve Element (VFWAY) .....................................................................7-55Three-Way Valve Element (VTWAY)....................................................................7-57Weld Element (WELD)..........................................................................................7-59

Index

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1 Introduction

1.1 About the DESIGN Reference Manual

The PDMS DESIGN Reference Manual describes all the DESIGN commandsin detail. It also describes how the Design database is structured, the Designdatabase elements and their attributes.

DESIGN is normally used interactively. The Graphical User Interface (GUI)provides discipline-based applications which help you to create, check andreport on the model. How to use the applications is described in user guidesand on-line help.

This manual is written for experienced users of PDMS DESIGN who need touse commands; for example, to write batch macros or to customise the GUI. Ifyou are going to customise the GUI, you will also need to refer to the CadcentreSoftware Customisation Guide and Cadcentre Software CustomisationReference Manual for information about PML, the Cadcentre programminglanguage.

1.2 Organisation of the DESIGN Reference Manual

The DESIGN Reference Manual has four parts:

• Part 1, General Commands, describes general DESIGN commands, whichare used, for example, for setting up the display, and querying andnavigating around the Design database.

In particular, it describes how to use the command syntax graphs,which are used to show all the options available for each command.

• Part 2, Creating the Model, describes the commands for creatingdatabase elements and setting their attributes.

• Part 3 (this volume) contains details of all the elements which can becreated in the Design database, their position in the database hierarchyand their attributes.

• Part 4, Utilities, describes the DESIGN Utilities for data consistencychecking and clash detection, and for exporting DESIGN data toprograms such as REVIEW.

Introduction

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1.3 Organisation of this Manual

Chapter 2, The DESIGN Database Hierarchy, shows all the Design databaseelements arranged as a hierarchy.

Chapter 3, Introduction to Attributes, describes the different types of attributesthat Design database elements can have.

Chapter 4, Administrative and Reference Attributes, describes the Designelements which do not have any graphical representation (Sites, Zones, etc),and shows where they are described in the rest of the manual.

Chapters 5, 6 and 7 are the reference chapters for Equipment and CivilsElements, Structural Elements and Piping Elements respectively.

Note: For a comprehensive list of PDMS attributes and pseudo-attributes,see the Cadcentre Software Customisation Reference Manual.

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2 The Design Database Hierarchy

This chapter shows the hierarchy of all the elements available in the Designdatabase.

WORLD

SITE

ZONE DRAWING GROUND Model

POINTINVISIBLE POINTTANGENT POINT

POINTINVISIBLE POINT

DATUMRESTRAINTPENALTYVOLUME

ROUTINGPLANE

STRUCTURE PIPE PIPETRACK

EQUIPMENT

GROUP WORLD

GROUPBOUNDARY

HVAC


POLYGON

BOUNDARY


See Figure 2-6

See Figure 2-2 See Figure 2-2

Figure 2-1 The top levels of the Design database hierarchy

The Design Database Hierarchy


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ZONE

RESTRAINTEQUIPMENT PIPE

NOZZLE BRANCH HANGER

SCLAMPPCLAMPHELEM

SUBEQUIPMENT

Pipingcomponents

Designprimitives

HVAC

BRANCH

HVACcomponents

NOZZLEDesignprimitives

See Figure 2-5

See Figure 2-5

See Figure 2-3 See Figure 2-4

Figure 2-2 The Equipment and Piping (including Hangers and HVACelements) hierarchy

ELBO BEND TEE VALVEREDUCER FLANGE GASKET VENTWELDOLET BLIND FLANGE FILTER COUPLINGSTANDARD HOOK-UP THREE-WAY VALVE CAP WELDFIXED TUBE LENGTH FOUR-WAY VALVE UNION TRAPLAP-JOINT STUB END DUCTING CROSS CLOSUREATTACHMENT POINT INSTRUMENTGENERAL PIPE COMPONENT

Figure 2-3 Piping components

AHU Air handling unit OFST OffsetBATTERY PLATEBCRO Branch connector PLENUMCOWL SILENCERDAMPER SKIRTFLEX Flexible bend or tube SPLITTERGASKET STIFFENERGRILLE STRT StraightHACC Access panel TAPERHFAN Centrifugal fan THREEWAYHSADDLE TP Test pointIDAM Internal damper TRNS TransformationMESH

Figure 2-4 HVAC components


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These all have negativeequivalents which can beowned by positive primitives:CYLINDERBOXPYRAMIDSNOUTCONEDISHCIRCULAR TORUSRECTANGULAR TORUSSLOPE-BOTTOMEDCYLINDER

Other positive primitives:

POLYHEDRON which can own POLYGON

EXTRUSION which can own LOOP which can own VERTEX

SOLID OF REVOLUTIONwhich can own LOOP which can own VERTEX

Other negative primitives:

EXTRUSION which can own LOOP which can own VERTEX

SOLID OF REVOLUTIONwhich can own LOOP which can own VERTEX

Figure 2-5 Design primitives

STRUCTURE

SUBSTRUCTURE DRAWING POLYHEDRON

POLYGON

FRAMEWORK

SECTION PRIMARY NODE PANEL

ROUTING PLANEGROUP

LOAD CASEDESCRIPTOR

ROUTING PLANE

SUBFRAMEWORK

DRAWINGPENALTY VOLUMEROUTING PLANE

PANEL LINEAR JOINT

designprimitive

optional

GENERIC SECTION

See Figure 2-7 See Figure 2-8 See Figure 2-9 See Figure 2-10

Figure 2-6 The top-level Structural elements hierarchy



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SECTION

SECONDARYNODE

SECTION POINTLOAD

SECTIONDISTRIBUTED

LOAD

RELEASE NODAL LOADNODALDISPLACEMENT

SECTIONLINEAR JOINT

SECTIONVERTEX

SECONDARYCOMPOUND JOINT

SUBJOINT

COMPOUNDFITTING

SUBFITTING

FITTING

SECONDARYJOINT

Figure 2-7 The hierarchy under Sections

GENERIC SECTION

SPINE JLDATUM

POINSP CURVEPLDATUM

FIXING

Figure 2-8 The hierarchy under Generic Sections

PRIMARY NODE

PRIMARYJOINT

RELEASE NODALLOAD

NODALDISPLACEMENT

PRIMARYCOMPOUND

JOINT

SUBJOINT

FIXING

Figure 2-9 The hierarchy under Primary Nodes



2-5

PANEL

PANELLINEAR JOINT

PANEL FITTING

PANEL VERTEX

PANEL LOOP COFITTING negative designprimitives

COMPOUNDPANEL

FITTING

SUBFITTINGPANEL VERTEX

Figure 2-10 The hierarchy under Panels


3 Introduction to Attributes

All the Design attributes can be queried and set by the user. However, manyare automatically set as a result of DESIGN commands. Only the attributesthat you would normally set explicitly are described in full. The ones that areset automatically are of interest because you can report on them.

Note that some attributes are used exclusively by PDMS modules other thanDESIGN. These are not described here.

Attributes can be divided into two categories:

1. General attributes occur throughout the database; they are common tomost elements. For example, OWNER (every element in the Design datahas an owner), POS (position), ORI (orientation), BUILT (true or false,indicating whether it has been constructed on site or not).

2. Special Attributes belong to particular elements or classes of elementsand have specific meanings for those elements; for example, FLOWD(flow direction) in a Branch.

The special attributes are either self-explanatory or are explained in thecontext of the element under which they appear in this chapter. The generalattributes are best considered in terms of their effect on the Design Model, sotheir meanings and applications are described in the earlier chapters.

Note: Some special attributes are only used for drawing control withinISODRAFT or DRAFT. How the settings of these attributes areapplied is described in the ISODRAFT or DRAFT Reference Manual.

For a comprehensive list of all PDMS attributes and pseudo-attributes, see the Cadcentre Software Customisation ReferenceManual.

In addition to their standard attributes, elements may have one or more user-defined attributes (UDAs). These are set and used in the same way asstandard attributes, except that the UDA names are distinguished by beingprefixed with a colon (:) character. For further details, see the LEXICONReference Manual.

Introduction to Attributes


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3.1 Attribute Types

The following is a list of all the Design attribute types.

Name AttributeEvery element except the WORLD can be given a name. All names start with aslash / and consist of any number of name parts separated by further slashes.The maximum length is 51 characters. A name part consists of any string ofcharacters, letters, or digits, with the exception of $ or @. If the STARcommand (qv) has been used, the * character has special significance.

The names given to elements are purely for your convenience and have nomeaning in the system.

Examples: /HX42 /HX42/NOZ1 /16/23/NH4/H21/N4 /AREA3

Real AttributeA real attribute holds a single real number (e.g. 25.5, -0.057, 25683.5, etc.).Real attributes are generally used to store dimensions (e.g. DIAM, XLEN, etc.).

Integer AttributeAn integer attribute holds a single integer or whole number (e.g. 1, -2, 4000,etc.). Integer attributes are used in Piping Components to identify connectionpoints (ARRIV, LEAVE); in Equipment Primitives to identify obstruction levelsfor clash detection (OBSTR); etc.

Reference AttributeA reference attribute holds a reference to another element. The attribute holdsthe internal system reference number, e.g. =12/106, and not the name of theelement. Reference attributes are used to forge logical links between elements.For example, the SPREF attribute is used to link a Piping Component elementin the Design to a Specification Component in a Specification. Note that areference attribute may be restricted to storing the references of particulartypes of element (e.g. the SPREF reference of a Piping Component may onlycontain the reference to a Specification Component element, i.e. an element oftype SPCOM). The restrictions on individual reference attributes are shown inbrackets with each attribute.

Logical AttributeA logical attribute is either TRUE or FALSE. An example of its use is theBUILT attribute in a Pipe which is needed to indicate whether the Pipe hasbeen constructed on site or not.

Word AttributeA word attribute holds a string of up to four characters. Word attributes areused, for example, to indicate the direction of flow in a branch (FORW, BACK)etc.

Introduction to Attributes


3-3

Text AttributeA text attribute holds a string of up to 120 alphanumeric characters (e.g. ’HPSTEAM’). This string must be input between closing single quotes or,optionally, between vertical bars (useful for entering imperial units, e.g.|4’6|).

Real Array AttributeA real array attribute holds more than one real number. For example, theposition attribute (POS) consists of three real numbers and represents the X, Yand Z coordinates which define the position of an element.

Integer Array AttributeAn integer array attribute holds more than one integer. For example, theLEVEL attribute consists of two integers and is used to control the level rangeof drawing detail.

Reference Array AttributeA reference array attribute holds more than one reference to another element.For example, a connection reference array (CRFA) is used to hold theconnection links of a four-way valve (VFWA) or a CROSS.


4 Administrative and Reference Elements

There are a number of elements in the Design Model whose range ofapplicability is not confined to either Equipment, Piping or Civils. Theseinclude administrative elements (e.g. WORLD, SITE, ZONE), and elementswhich refer to restrictions and constraints set by the user (e.g. PenaltyVolume, Routing Plane). The elements and their attributes and Members areexplained in this section.

Administrative and Reference Elements


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4.1 Administrative Elements

World Element (WORLD) Administrative Element

Description: The WORLD is the topmost level of the design hierarchy within whichall other elements exist. It cannot be deleted or copied in the same waythat applies to, say, a ZONE or a BOX. Its existence is controlledoutside DESIGN by the ADMINISTRATION module of PDMS.

Attributes:Name /*Lock false

Legal Owners: None

Legal Members: SITE, GPWL, TPWL



4-3

Site Element (SITE) Administrative Element

Description: The SITE is one level below WORLD and is the most significantelement that can be created, deleted, copied or moved. Each SITE mayrepresent a geographical or administrative division of the plant.

Attributes:Name /nameLock falseOwner /*Position E 0mm N 0mm U 0mmOrient Y is N and Z is UFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Module unset

Legal Owners: WORL

Legal Members: TEXT, ZONE, BOUN, DRAWI, GRDM, TMPL, DPSE, DDSE,PORS, LNKS



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Zone Element (ZONE) Administrative Element

Description: The ZONE is the administrative element at the third level down thehierarchy. It may represent a geographical or administrative divisionof the plant and can directly own Equipment, Civils and Pipingelements.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Module unsetPspec Nulref Pipe SpecificationIspec Nulref Insulation SpecificationTspec Nulref Trace heating SpecificationDUnion 0 DRAFT union (common edge) setting

Legal Owners: SITE

Legal Members: TEXT, BOUN, EQUI, PIPE, STRU, PTRA, PVOL, DRAWI, RPLA,DATU, REST, HVAC, TMPL, DPSE, DDSE, PORS, LNKS



4-5

Group World Element (GPWL) Administrative Element

Description: This is a subsidiary World that contains only GROUPs and is ownedby the main WORLD element.

Attributes:Name /nameLock falseOwner /*Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character text

Legal Owners: WORL

Legal Members: GROU



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Group Element (GROUP) Administrative Element

Description: You may define as a GROUP any collection of elements in thedatabase, assembling these elements as a single GROUP unit.

Attributes:Name /nameLock falseOwner /nameDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character text

Legal Owners: GPWL

Legal Members: None (but it can have offspring of any element type)



4-7

General Text Element (TEXT) Administrative Element

Description: TEXT is a general element that can occupy most positions in thehierarchy. It can be used to store additional information about anowning or adjacent element.

Attributes:Name /nameLock falseOwner /nameStext unset Up to 120 characters of text

Legal Members: None

Legal Owners: SITE, ZONE, EQUI, STRU, PTRA, PIPE, BOUN, DRAWI, GRDM,SUBS, BRAN, REST, SUBE, FRMW, SBFR



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Ground Model Element (GRDMODEL) Reference Element

Description: Basic shapes and features in the site can be represented by GroundModels. These may be natural occurrences like mounds or slopes. EachGround Model element is built up in exactly the same way asPOHEDRONS (polyhedrons) which are described elsewhere.Restrictions on the form of Ground Models mean that they are oflimited use. Complex surface profiles are better approximated by a‘dummy’ STRUCTURE containing any of the basic shapes.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Descript unset 120 character textPurpose unset 120 character text

Legal Owners: SITE

Legal Members: POGO, TEXT



4-9

Site Boundaries and Roadways Element (BOUNDARY)Reference Element

Description: For site layout features such as fences and roadways it will often besufficient to restrict modelling to lines and arcs laid out on a surface.The BOUNDARY element allows this method of modelling bypositioning member POINTS, IPOINTS (invisible points) andTANPOINTS (tangent points) to describe the required outlines. TheBOUNDARY can be thought of as a ‘high level’ basic element (itsidentical low-level equivalent is the DRAWING, which can belong toEQUIPMENT, STRUCTURES etc.). The BOUNDARY has the normaldrawing LEVEL attribute of a primitive, but no OBSTRUCTION (as itis composed entirely of lines).

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character text

Legal Owners: SITE, ZONE

Legal Members: POIN, TANP, IPOI, TEXT



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Routing Plane Element (RPLANE) Reference Element

Description: This is a planar element that has special significance in pipe routing(see Part 2 of the DESIGN Reference Manual), but may be used as ageneral reference plane. See Part 2 of the DESIGN Reference Manualfor maore information about routing planes in Pipe routing and inSteelwork Structures.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 1Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textXlength 0mmYlength 0mm

XLEN

Z

Y

X

YLEN

Figure 4-2 Special Attributes of RPLANE Elements

Legal Owners: ZONE, PTRA, EQUI, STRU, SUBS, SUBE (plus RPLG in Steelworkapplications).

Legal Members: None



4-11

Penalty or Preferred Volume Element (PVOLUME)Reference Element

Description: This is a BOX-like volume that has a special significance to the pipe-routing function of DESIGN (see Chapter 13). DESIGN can determinewhether to treat a PVOL as a Preferred or Penalty Volume, dependingon the relative values of the WEIGHT attribute. Penalty Volumes aregenerally used for roads, access ways etc.

Attributes:Name /PVOL nameLock falseOwner namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 2Xlength 0mmYlength 0mmZlength 0mmWeight 1 1 1 Three integers indicating whether the PVOL is a Penalty

or Preferred volume

XLEN

Z

Y

X

YLEN

ZLEN

Figure 4-3 Special Dimensional Attributes of PVOL Elements

Legal Owners: ZONE, PTRAC, STRU, SUBS, EQUI, SUBE

Legal Members: None



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Datum Point Element (DATUM) Reference Element

Description: This point can be used as a reference position against which otherelements are located. It is shown as a set of axes with a local Northpointer.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textHeight 0mm Length of the datum symbol axes; see Figure 16-4.Skey unset A code which indicates the symbol and annotating

text which is to be shown when the element is usedas a reference datum for ISODRAFT dimensions.

Stext unset Text used to amplify the element’s identity whenused as a reference datum for ISODRAFT dimensions

HEIGHT

Figure 4-4 Special Attribute of DATUM Element

Legal Owners: ZONE

Legal Members: None


5 Equipment and Civils Elements

This section describes the elements of the Design hierarchy that are availablefor modelling all non-piping (routed) items. The elements mentioned only takeon a physical appearance from the primitive shapes that they own. Thepurpose of these elements is therefore to represent assemblies of primitivesthat provide convenient and manageable items of plant - structures, pumps,vessels, columns, stairways etc. In addition, they possess different SpecialAttributes that can hold information relevant to their function, constructionstatus etc. This information can be reported on, in a chosen format, using thestandard PDMS reporting utilities.

Equipment and Civils Elements


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5.1 The Main Equipment and Civils Elements

Equipment Element (EQUIPMENT) Main Equipment/Civils Element

Description: The EQUIPMENT element represents process vessels, storage vessels,heat exchangers, pumps and any other predefined item that is part ofthe plant. The unique feature of this element is that it may ownNOZZLEs in addition to the normal primitive shapes. Pipework can beconnected to the Nozzles, thus making EQUIPMENTs intrinsic to theprocess system.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Dscode Design Code (text).Ptspec Paint Specification (text).Ispec Insulation Specification (text). This does not directly control

insulation, but may be used to indicate insulation requirementsfor all connecting Pipes. It must refer to an existing Specification.

Insched Inspection Schedule (text).Skey A code which indicates the symbol and annotating text which is

to be shown when the element is used as a reference datum forISODRAFT dimensions.

StlRef Steel reference; e.g. a pointer to an associated substructurerepresenting a vessel support.

Legal Owners: ZONE

Legal Members: TEXT, NOZZ, BOX, CYLI, PYRA, DISH, CONE, SNOU, CTOR, RTOR,SLCYL, POHE, DRAWI, PVOL, RPLA, SUBE, NBOX, NCYL, NSLC,NSNO, NDIS, NCON, NPYR, NCTO, NRTO, LOAP, EXTR, NXTR,REVO, NREV, RULS, NRUL, PANE, MNOZ, TMPL, DPSE, DDSE,PORS, LNKS



5-3

Process Subequipment Element (SUBEQUIPMENT)Main Equipment/Civils Element

Description: The SUBEQUIPMENT element is similar to the EQUIPMENT element,except that it is owned by an EQUIPMENT element and cannot itselfown SUBEQUIPMENT elements.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Dscode Design Code (text).Ptspec Paint Specification (text).Ispec Insulation Specification (text). This does not directly control

insulation, but may be used to indicate insulation requirementsfor all connecting Pipes. It must refer to an existing Specification.

Insched Inspection Schedule (text).Skey A code which indicates the symbol and annotating text which is to

be shown when the element is used as a reference datum forISODRAFT dimensions.

Desparam Design Parameters. 100-fold real array used to convey databetween the Catalogue and the design.

Legal Owners: ZONE

Legal Members: TEXT, NOZZ, BOX, CYLI, PYRA, DISH, CONE, SNOU, CTOR, RTOR,SLCYL, POHE, DRAWI, PVOL, RPLA, SUBE, NBOX, NCYL, NSLC,NSNO, NDIS, NCON, NPYR, NCTO, NRTO, LOAP, EXTR, NXTR,REVO, NREV, RULS, NRUL, PANE, MNOZ, TMPL, DPSE, DDSE,PORS, LNKS



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Structure Element (STRUCTURE) Main Equipment/Civils Element

Description: The structural framework of the plant (for example, buildings, piperacks, equipment racks) can be modelled on a simple level using thesame basic set of primitive shapes available for Equipment (the maindifference being that such elements cannot own Nozzles).

The principal feature of the STRUCTURE element is its ability to ownSUBSTRUCTURES as well as primitive shapes, Routing Planes andPenalty Volumes. This enables, say, a rack to be further divided intobeams and columns. (See also Section 6.1 for the use of this element indesigning Steelwork Structures.)

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseSkey unset A code which indicates the symbol and annotating text

which will be shown when the element is used as areference datum for ISODRAFT dimensions.

Legal Owners: ZONE

Legal Members: SUBS, TEXT, BOX, CYLI, PYRA, DISH, CONE, SNOU, CTOR, RTOR,SLCY, POHE, DRAWI, PVOL, RPLA, NBOX, NCYL, NSLC, NDIS,NSNO, NCON, NPYR, NCTO, NRTO, (plus FRMW, RPLG, and LCDEin Steelwork applications)



5-5

Pipe Track Element (PTRACK) Main Equipment/Civils Element

Description: The Pipe Track is a type of STRUCTURE along which pipes are to berouted. It is a special element for the automatic pipe routing functionof DESIGN; it cannot own SUBSTRUCTURES.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt false

Legal Owners: ZONE

Legal Members: TEXT, BOX, CYLI, PYRA, DISH, CONE, SNOU, CTOR, RTOR, SLCY,POHE, DRAWI, PVOL, RPLA, EXTR, REVO, RULS, PANE, TMPL,SPSE, DDSE, PORS, LNKS



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Substructure Element (SUBSTRUCTURE)Main Equipment/Civils Element

Description: Minor structural elements such as beams, columns, walls, ladders andstaircases can be modelled with the standard set of basic primitiveshapes within a SUBSTRUCTURE element.

Attributes:

Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseShop falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Profile unset Can be used as description of, say, steel section

being used (e.g. 200 x 200 uc).Length 0mm Can indicate length of element; say the column

height. It has no physical significance - the realdimensions of the member are modelled withprimitives.

Skey unset A code which indicates the symbol andannotating text which is to be shown when theelement is used as a reference datum forISODRAFT dimensions.

Legal Owners: STRU

Legal Members: TEXT, BOX, CYLI, PYRA, DISH, CONE, SNOU, CTOR, RTOR SLCY,POHE, DRAWI, PVOL, RPLA, NBOX, NCYL, NSLC, NDIS, NSNO,NCON, NPYR, NCTO, NRTO, EXTR, NXTR, REVO, NREV, RULS,NRUL, PANE, TMPL, DPSE, DDSE, PORS, LNKS



5-7

5.2 The Primitive Modelling Elements

This section describes the elements that give the Equipment and Civils items areal physical shape. They comprise standard solid shapes and a specialComponent of EQUIPMENT items - the NOZZLE. These elements can all bepositioned and oriented within their owning item; in order to facilitate this,they possess standard positioning points (p-points) which also allow connectionoperations.

This comprehensive set of geometric shapes forms the physical informationfrom which non-piping items are constructed. Each shape has a set of specialattributes that give it a physical appearance, e.g. CYLINDER has attributesDIAMETER and HEIGHT. All the primitives contain the attributes LEVELand OBSTRUCTION which allow them to be selectively drawn in DESIGN orDRAFT, or clash checked in DESIGN. (DRAWI does not have anOBSTRUCTION as it can only contain lines).



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Nozzle Element (NOZZ) Primitive Element

Description: NOZZles are significant to the Design because they provide the linkbetween an EQUIPMENT (which owns them) and a Pipe (BRANCH)which is connected to each one.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textCatref Nulref Provides physical description of NOZZLE directlyfrom

Catalogue. If unset, NOZZLE has no geometry.Height 0mm Controls height of NOZZLE stem (assuming normal

Catalogue conventions are followed). See Figure 16-5.Cref Nulref (Connection Reference) Usually set automatically

when a BRANCH is connected to a NOZZLE. Storesname of connected BRANCH. If unset, NOZZLE is notconnected to anything.

Temp -100000 Can hold relevant temperature rating.Pressure 0 Can hold relevant pressure rating.Duty unset Text describing type of fluid handled.Ispec Nulref (Insulation Spec) Does not directly control insulation,

but may be used to indicate insulation requirements.It must refer to an existing Specification.

Angle 90 These allow the Nozzle definition in the Catalogue toinclude

Radius 0mm Parameterised angles and dimensions which maythen be set

Desparam unset from the design attributes.



5-9

Z

X

Y

P0

P1

P2

Figure 5-5 The NOZZle Element

Legal Owners: EQUI, SUBE

Legal Members: None



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BOX Element (BOX) Primitive Element

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UObstruct 2Level 0 10Xlength 0mm Ylength 0mmZlength 0mm

Figure 5-6 The BOX Element

Legal Owners: EQUI, STRU, SUBS, PTRA, SUBE, PJOI, SJOI, FITT

Legal Members: NBOX, NCYL, NCON, NPYR, NSLC, NCTO, NSNO, NRTO, NDIS,NXTR, NREV, NRUL



5-11

Cylinder Element (CYLI) Primitive Element

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UObstruct 2Level 0 10Diameter 0mm DiameterHeight 0mm Axial height

DIAM

HEIGHT

P1

P0

Z

Y

X

P2

Figure 5-7 The CYLInder Element





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CONE Element Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Dtop 0mm Diameter of top surfaceDbottom 0mm Diameter of bottom surfaceHeight 0mm Axial height

X

Y

Z

P0

P2

P1

DTOP

DBOTTOM

HEIGHT

Figure 5-8 The CONE Element





5-13

Snout Element (SNOU) Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Dtop 0mm Diameter of top surfaceDbottom 0mm Diameter of bottom surfaceXoff 0mm Displacement of axes along X-axisYoff 0mm Displacement of axes along Y-axisHeight 0mm Perpendicular distance between surfaces

The origin of the Snout is at the mid-point of the line joining the centres of thetop and bottom surfaces and the Z-axis is normal to the top and bottomsurfaces.

X

Y

Z

P0

P2

P1

DTOP

DBOTTOM

YOFF

XOFF

HEIGHT

Figure 5-9 The SNOUT Element

Legal Owners: EQUI, STRU, SUBS, PTRA,SUBE, PJOI, SJOI, FITT




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DISH Element Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Diameter 0mm Diameter of baseHeight 0mm Maximum height of dished surface above baseRadius 0mm If radius is zero, dish is drawn as section of sphere.

If radius is greater than zero, dish is defined as halfof an ellipsoid:

The origin of the Dish is at the centre of the base, and the Z-axis lies along thenormal to the base.

Figure 5-10 The DISH Element





5-15

Circular Torus Element (CTOR) Primitive Element

Attributes:Name /nameLock falseObstruct 2Position E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Rinside 0mm Inside radiusRoutside 0mm Outside radiusAngle 90 Subtended angle (max. 180 degrees)

The origin of the Circular Torus is at the centre of the circular arcs of radiiRINSI and ROUTS, and is defined in the X-Y plane.

Figure 5-11 The CTOR Element





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Rectangular Torus Element (RTOR) Primitive Element

Attributes:Name /nameLock falseObstruct 2Position E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Rinside 0mm Inside radiusRoutside 0mm Outside radiusHeight 0mm Height of rectangular sectionAngle 90 Subtended angle (max. 180 degrees)

The origin of the Rectangular Torus is at the centre of the circular arcs of radiiRINSI and ROUTS, and is defined in the X-Y plane.

Figure 5-12 The RTOR Element





5-17

Pyramid Element (PYRA) Primitive Element

Attributes:Name /nameLock falseObstruct 2Position E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Xbottom 0mm Dimension of bottom parallel to X-axisYbottom 0mm Dimension of bottom parallel to Y-axisXtop 0mm Dimension of top parallel to X-axisYtop 0mm Dimension of top parallel to Y-axisHeight 0mm Height between top and bottom surfacesXoff 0mm Displacement of axes along X-axisYoff 0mm Displacement of axes along Y-axis

The origin of the Pyramid is at the mid-point of the line joining the mid-pointsof the top and bottom surfaces, and the Z-axis is normal to the top and bottomfaces.

P1

P2

YBOTTOM

XBOTTOM

XTOP

YTOP

XY

Z

P0

YOFF

XOFF

HEIGHT

Figure 5-13 The PYRA Element





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Slope-Bottom Cylinder Element (SLCY) Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Diameter 0mm DiameterHeight 0mm Height along axis, between P1 and P2Xtshear 0 Inclination of top face to X-axisYtshear 0 Inclination of top face to Y-axisXbshear 0 Inclination of bottom face to X-axisYbshear 0 Inclination of bottom face to Y-axis

The origin of the Slope-bottom Cylinder is at the mid-point of the axis (mid-way between P1 and P2) and the default orientation is with the axis on the Z-axis.

HEIGHT

XBSH

XTSHYTSH

YBSH

DIAM

P2P2SOUTH ELEV. WEST ELEV.

P0

Z

YXP0

Z

P1 P1

Figure 5-14 The SLCY Element





5-19

Extrusion Element (EXTRU) Primitive Element

Description: The EXTRUSION can be used to represent any volume of uniformcross-section. It is defined by sweeping a profile representing theextrusion’s shape (LOOP) through a given distance (equivalent to theextrusion thickness).

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 2Height 0 Distance through which LOOP is extruded in Z

direction to form Extrusion (i.e. extrusion thickness).

=Loop (LOOP)

=Vertex (VERT)

Height

Origin ofEXTRU

Z axis of EXTRU

of EXTRU

Figure 5-15 Defining an EXTRUsion

Legal Owners: EQUI, SUBE, PJOI, SJOI, FITT (see also section 17.3.1)

Legal Members: LOOP, NBOX, NCYL, NCON, NPYR, NSLC, NCTO, NSNO, NRTO,NDIS, NXTR, NREV, NRUL



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Solid of Revolution (REVO) Primitive Element

Description: The Solid of Revolution represents any shape which can be generatedby sweeping a constant cross-section profile through an angle about anaxis. The profile is represented by a LOOP, in the same way as for anExtrusion, but in this case the profile is swept about an axis ratherthan along a linear path. The swept angle must be in the range -360to +360 degrees, 360 degrees giving a solid which is axiallysymmetrical.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 2Angle 0.0 Subtended angle through which the 2D loop is swept

around the X axis to create the 3D solid.

=Loop vertex

Y

XZ

Angle

Origin

Figure 5-16 Defining a Solid of REVOlution

Legal Owners: EQUI, SUBE, STRU, SUBS, PTRA, TMPL

Legal Members: LOOP, NBOX, NCYL, NCON, NPYR, NSLC, NCTO, NSNO, NRTO,NDIS, NXTR, NREV, NRUL



5-21

Loop Element (LOOP) Primitive Element

Description: The LOOP represents a 2D profile which defines the shape of anExtrusion or Solid of Revolution. It is defined as a set of edges linkingadjacent points represented by Vertex (VERT) elements.

Attributes:Name /nameLock falseOwner /name

Legal Owners: EXTRU, NXTR, REVO, NREV

Legal Members: VERT



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Vertex Element (VERT) Primitive Element

Description: A VERT element defines each vertex of a Loop.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmFradius 0 Fillet radius of Loop at vertex position. +ve radius

curves away from vertex; -ve radius curves towardsvertex; zero radius gives point only.

Legal Owners: LOOP



5-23

Polyhedron Element (POHE) Primitive Element

Description: This free-form element can be built into any shape by assembling anumber of member POLYGONS.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 2

Polyhedrons must be constructed so that they have no re-entrant corners. If apolyhedron contains a re-entrant corner, it must be split into two or more legalpolyhedrons.

BAD

GOOD

7 polygons, but re-entrant corner- not allowed

4 polygons, no re-entrant corners

Figure 5-17 The POHE Element

Legal Owners: EQUI, STRU, SUBS, PTRA, SUBE

Legal Members: POGO



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Polygon Element (POGO) Primitive Element

Description: This element can belong to a Polyhedron (or Ground Model) and is thedefinition of a face of the owning solid shape. The face is defined bypositioning member points which define its boundary.

Attributes:Name /nameLock falseOwner /nameLevel 0 10

The sequence of points in the Member List must correspond to theanticlockwise sequence of points when the external face of the polygon isviewed.

If an IPOI (invisible point) is included as a Member of the POGO, the sideformed by the IPOI and the previous point will be invisible.

POIN

POIN

POIN

POIN

IPOI

Figure 5-18 The POGO Element

Legal Owners: POHE, GRDM

Legal Members: POIN, IPOI



5-25

Drawn Line Element (DRAWI) Primitive Element

Description: DRAWI is an element which may be used to produce a symbol orshape on a drawing not normally catered for elsewhere in PDMS. If,for example, it were necessary to show a company name in largeletters painted on the side of a tank, the letters could be built up asDRAWI elements which would be members of the EQUIP containingthe tank. Commonly used to show the centreline of a beam or column.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Skey unset A code which indicates the symbol and annotating

text which is to be shown when the element is used asa reference datum for ISODRAFT dimensions.

Lissue false Status flag showing if drawing has been issued or not.Wmax 0 Maximum weld number used in ISODRAFT.Pmax 0 Maximum part number used in ISODRAFT.Smax 0 Maximum spool number used in ISODRAFT.Jmax 0 Maximum joint number used in ISODRAFT.Revision 0 Current revision number used in ISODRAFT.Splp unset Spool prefix text used in ISODRAFT.



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The Figure 5-19 shows lines and curves drawn between Points (P), TangentPoints (T) and Invisible Points (I) for Boundaries and Drawings.

Figure 5-19 The DRAWI Element

Legal Owners: EQUI, STRU, SUBS, PTRA, ZONE, SITE, SUBE.

Legal Members: POIN, TANP, IPOI, TEXT



5-27

Point Element (POINT) Primitive Element

Description: This element is positioned to describe a point in a line (when its owneris a BOUNDARY or DRAWING) or a vertex on a plane shape (whenits owner is a POGON).

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOwner /name

Legal Owners: DRAWI, BOUND, POGO

Legal Members: None



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Invisible Point Element (IPOINT) Primitive Element

Description: This element is positioned to allow a break in a line.


Legal Owners: DRAWI, BOUND, POGO

Legal Members: None



5-29

Tangent Point Element (TANPOINT) Primitive Element

Description: This element allows a smooth curve (second order Bezier) to be drawnbetween two points in a line.


Legal Owners: DRAWI, BOUND

Legal Members: None



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5.3 Holes in Primitive Elements

Holes of any shape can be created in a primitive by creating a ‘negative’primitive owned by the ‘positive’ primitive within which the hole is to appear.Any type of positive primitive may own any type of negative primitive. Thenegative shapes have position, orientation and dimensions which govern howthey penetrate their owner. Holes can pass either partially or completelythrough their owners, but special rules should be observed when penetratingthe surface of a primitive.



5-31

Negative Box Element (NBOX) Primitive Element

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UObstruct 2Level 0 10Xlength 0mm Dimension parallel to X-axisYlength 0mm Dimension parallel to Y-axisZlength 0mm Dimension parallel to Z-axis

These are as for BOX, but note that the Zlength dimension must be thepenetrating dimension for a hole which breaks the surface of its owningprimitive.

OWNINGBOX

ZLEN

25 mm

25 mm

NBOX

Figure 5-20 The NBOX Element

Legal Owners: EQUI, SUBE, STRU, SUBS, PJOI, SJOI, FITT, BOX, CYLI, PYRA,CONE, SLCY, CTOR, RTOR, SNOU, DISH, REVO

Legal Members: None



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Negative Cylinder Element (NCYL) Primitive Element

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UDiameter 0mmObstruct 2Level 0 10Height 0mm This dimension must be the penetrating dimension

for a hole which breaks the surface of its owningelement.

25 mm

25 mm

OWNINGBOX

HEIGHT

NCYLINDER

Figure 5-21 The NCYL Element

Legal Owners: BOX, CYLI, PYRA, CONE, SLCY, CTOR, RTOR, SNOU, DISH, REVO

Legal Members: None



5-33

Negative Cone Element (NCON) Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Dtop 0mm Diameter of top surfaceDbottom 0mm Diameter of bottom surfaceHeight 0mm Axial height


Legal Members: None



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Negative Snout Element (NSNO) Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Dtop 0mm Diameter of top surfaceDbottom 0mm Diameter of bottom surfaceXoff 0mm Displacement of axes along X-axisYoff 0mm Displacement of axes along Y-axisHeight 0mm Perpendicular distance between surfaces

The origin of the NSnout is at the mid-point of the line joining the centres ofthe top and bottom surfaces and the Z-axis is normal to the top and bottomsurfaces.


Legal Members: None



5-35

Negative Dish Element (NDIS) Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Diameter 0mm Diameter of base.Height 0mm Maximum height of dished surface above base.Radius 0mm If the radius is set to zero, the dish is drawn as a

section of a sphere. If the radius is greater than zero, the dish is defined as half of an ellipsoid.

The origin of the NDish is at the centre of the base, and the Z-axis lies alongthe normal to the base.


Legal Members: None



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Negative Circular Torus Element (NCTO) Primitive Element

Attributes:Name /nameLock falseObstruct 2Position E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Rinside 0mm Inside radiusRoutside 0mm Outside radiusAngle 90 Subtended angle (must not be greater than 180°)

The origin of the NCircular Torus is at the centre of the circular arcs of radiiRINSI and ROUTS, and is defined in the X-Y plane.


Legal Members: None



5-37

Negative Rectangular Torus Element (NRTO) Primitive Element

Attributes:Name /nameLock falseObstruct 2Position E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Rinside 0mm Inside radiusRoutside 0mm Outside radiusHeight 0mm Height of rectangular sectionAngle 90 Subtended angle (must not be greater than 180°)

The origin of the NRectangular Torus is at the centre of the circular arcs ofradii RINSI and ROUTS, and is defined in the X-Y plane.

Legal Owners: BOX, CYLI, PYRA, CONE, SLCY, CTOR, RTOR, SNOU, DISH, REVO

Legal Members: None



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Negative Slope-Bottomed Cylinder Element (NSLC) Primitive Element

Attributes:Name /nameLock falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Obstruct 2Diameter 0mm Diameter of cylinderHeight 0mm Height along axis, between P1 and P2Xtshear 0 Inclination of top face to X-axisYtshear 0 Inclination of top face to Y-axisXbshear 0 Inclination of bottom face to X-axisYbshear 0 Inclination of bottom face to Y-axis

The origin of the NSlope-bottom Cylinder is at the mid-point of the axis (mid-way between P1 and P2) and the default orientation is with the axis on the Z-axis.


Legal Members: None



5-39

Negative Pyramid Element (NPYR) Primitive Element

Attributes:Name /nameLock falseObstruct 2Position E 0mm N 0mm U 0mmOrient Y is N and Z is UOwner /nameLevel 0 10Xbottom 0mm Dimension of bottom parallel to X-axisYbottom 0mm Dimension of bottom parallel to Y-axisXtop 0mm Dimension of top parallel to X-axisYtop 0mm Dimension of top parallel to Y-axisHeight 0mm Height between top and bottom surfacesXoff 0mm Displacement of axes along X-axisYoff 0mm Displacement of axes along Y-axis

The origin of the NPyramid is at the mid-point of the line joining the mid-points of the top and bottom surfaces, and the Z-axis is normal to the top andbottom faces.


Legal Members: None



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Negative Extrusion Element (NXTR) Primitive Element

Description: The NEGATIVE EXTRUSION can be used to represent any negativevolume of uniform cross-section. It is defined by sweeping a profilerepresenting the negative extrusion’s shape (LOOP) through a givendistance (equivalent to the extrusion thickness).

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 2Height 0 Distance through which LOOP is extruded in Z

direction to form Negative Extrusion (i.e. negativeextrusion thickness) - see Figure 16-22.

Legal Owners: EQUI, SUBE,

Legal Members: LOOP

=Loop (LOOP)

=Vertex (VERT)

Height

Origin ofNXTR

Z axis of NXTR

of NXTR

Figure 5-22 Defining an NXTR Element



5-41

Negative Solid of Revolution (NREV) Primitive Element

Description: The Negative Solid of Revolution represents any negative shape whichcan be generated by sweeping a constant cross-section profile throughan angle about an axis. The profile is represented by a LOOP, in thesame way as for a Negative Extrusion, but in this case the profile isswept about an axis rather than along a linear path. The swept anglemust be in the range -360 to +360 degrees, 360 degrees giving avolume which is axially symmetrical.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 2Angle 0.0 Subtended angle through which the 2D loop is swept

around the X axis to create the 3D shape.

=Loop vertex

Y

XZ

Angle

Origin

Figure 5-23 Defining an NREV Element


Legal Members: LOOP



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Loop Element (LOOP) Primitive Element

Description: The LOOP represents a 2D profile which defines the shape of anExtrusion. It is defined as a set of edges linking adjacent pointsrepresented by Vertex (VERT) elements.

Attributes:Name /nameLock falseOwner /name

Legal Owners: EXTRU, NXTR, REVO, NREV

Legal Members: VERT



5-43

Vertex Element (VERT) Primitive Element

Description: A VERT element defines each vertex of a Loop.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmFradius 0 Fillet radius of Loop at vertex position. +ve radius

curves away from vertex; -ve radius curves towardsvertex; zero radius gives point only.

Legal Owners: LOOP



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5.4 Elements for Connecting Equipment to Steelwork

Equipment Load Point Element (LOAP) Primitive Element

Description: The Equipment LOAP element provides a link between an Equipmentitem and a Steelwork Structural item. The CREF attribute of a LOAPand the CREF attribute of a Fitting (see Section 17.3.1) may point toeach other to indicate interconnection between them.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmDescript unset 120 character textCref Nulref Connection reference. Points to a reference which

identifies the Steelwork Fitting to which theEquipment item owning the LOAP is to be attached.

Legal Owners: EQUI, SUBE

Legal Members: None


6 The Structural Elements

This section describes those elements which allow you to design logicallyinterconnected steelwork or concrete structures. The elements have beensubdivided into two types: those representing administrative classifications ortangible components used during the design of the structure; and those usedsolely for stress analysis purposes on the assembled interconnected structure.

The Structural Elements


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6.1 The Structural Design Elements

Structure Element (STRUCTURE) Structural Design Element

Description: The Structure element has already been described in a differentcontext under the heading ‘Equipment and Civils Design Elements’(see Chapter 5). However, the hierarchy below the Structure elementalso allows for member elements which are specifically used forStructural Steelwork design.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Skey unset A code which indicates the symbol and annotating


DUnion 0 DRAFT union (common edge) setting

Legal Owners: ZONE

Legal Members: FRMW, RPLA, RPLG, LCDE, TEXT, CYLI, SLCY, SNOU, BOX, DISH,CONE, POHE, PYRA, CTOR, RTOR, DRAWI, PVOL, SUBS, NBOX,NCYL, NSLC, NSNO, NDIS, NCON, NPYR, NCTO, NRTO, EXTR,NXTR, REVO, RULS, NRUL, PANE, TMPL, DPSE, DDSE, PORS,LNKS



6-3

Framework Element (FRMW) Structural Design Element

Description: The FRMW element provides a convenient administrative element forstructural design modelling. A number of the attributes set at FRMWlevel will cascade down through the design hierarchy as memberelements are created during the steelwork design process.

Attributes:Name /nameLock falseOwner /nameShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0

The following attributes have functional significance at FRMW level:

Stspec Nulref Structural Specification. Used to allocate the correctfunctional specification to selected components.

Matref Nulref Material Reference.Grade 0 Material Grade.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Ptspec unset Paint Specification (text).Insched unset Inspection Schedule (text).Skey unset A code which indicates the symbol and annotating


DUnion 0 DRAFT union (common edge) setting.

Legal Owners: STRU

Legal Members: SBFR, SCTN, PNOD, PANE, TEXT, PALJ, TMPL, DPSE, DDSE,PORS, LNKS



Version 11.3

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Subframework Element (SBFR) Structural Design Element

Description: The SBFR element allows you to further subdivide a FRMW into moremanageable administrative portions for structural design modelling.As for FRMW, some attribute settings will cascade down to memberelements.

Attributes:Name /nameLock falseOwner /nameShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0

The following attributes have functional significance at SBFR level:

Stspecific Nulref Structural Specification. Used to allocatethe correct

functional specification to selected components.Matref Nulref Material Reference.Grade 0 Material Grade.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Ptspec unset Paint Specification (text).Insched unset Inspection Schedule (text).Skey unset A code which indicates the symbol and annotating


DUnion 0 DRAFT union (common edge) setting.

Legal Owners: FRMW

Legal Members: SCTN, PNOD, PANE, TEXT, PALJ, TMPL, DPSE, DDSE, PORS,LNKS



6-5

Primary Node Element (PNODE) Structural Design Element

Description: The PNODE is a fundamental ‘analytical’ point of connection betweenSections in an interconnected steelwork structure. Its position is usedto define the placing of Sections within the design model and as areference point for stress analytical calculations on the interconnectedstructure. Its position is defined relative to the coordinate system ofthe parent Structure (cf. the Secondary Node element, whose positionis defined relative to an owning Section).

Attributes:Name /nameLock falseOwner /nameLevel 0 10Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Nposition E 0mm N 0mm U 0mm

Node Position.Fixty Free Fixity. Text defining the degrees of freedom of

movement under the influence of applied forces ormoments (for stress analysis purposes). GTSTRUDL,for example, recognise two settings: Free or Support.

Legal Owners: FRMW, SBFR

Legal Members: PJOI, RELE, NOLO, NODI, PCOJ, DPSE, DDSE, PORS, LNKS



Version 11.3

6-6

Primary Joint Element (PJOINT) Structural Design Element

Description: The PJOINT is used to make a logical connection between a Section’sstart or end and a Primary Node. Its position is defined relative tothat of a PNOD (cf. SJOINT element). It allows you to model,indirectly, physical connections between Sections.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Delposition E 0mm N 0mm U 0mm

Delta position. Defines position of Joint withrespect to that of owning PNOD (i.e. Joint-to-Nodeoffset).

Opdirection U Origin Plane direction. Partly defines orientationof Joint (depends on definition of Joint inCatalogue).

Bangle 0 Beta Angle. Angle of rotation about Joint’s OriginPlane direction. Partly defines orientation of Joint(depends on definition of Joint in Catalogue).

Cutback 0mm Specifies length by which a Section attached to theJoint should be reduced or extended to allow forfitting geometry.

Cutplane U Cutting Plane Direction. Defines direction of planewhich forms cut end of a Section attached to theJoint.

Cref Nulref Connection reference. Points to an attachedSection.

Jline unset Joining Line. Defines position of Joint with respectto the p-lines of an attached Section.

JFree false Defines Joint dominance.Grade 0 Material Grade.Ispec Nulref Insulation Specification.Fireresist 0 Fire Resistance.Inreference Nulref Insulation Reference.Spref Nulref Specification Reference. Must refer to existing

Joint component in Catalogue.



6-7

Desparam unset Design Parameters. 100-fold real array used toconvey data between Joint component as defined inCatalogue and physical Joint as incorporated intothe design.

Legal Owners: PNOD

Legal Members: TMPL, DPSE, DDSE, PORS, LNKS



Version 11.3

6-8

Structural Section Element (SCTN) Structural Design Element

Description: A SCTN represents a linear component such as a beam, column, strutetc. It has a uniform cross-section along its length, defined byreference to a Catalogue PROFILE element, while its length is aderived property (not stored in an attribute) which is determined bythe Section’s start and end positions.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Bangle 0 Beta Angle. Angle of rotation about Section’s Z-axis.Drnstart E Start Direction. Direction of normal to Section’s end-

cutting plane at its start (set automatically bySTRING command).

Drnend E End Direction. Direction of normal to Section’send-cutting plane at its end (set automatically bySTRING command).

Posstart E 0mm N 0mm U 0mmStart Position. Coordinates of start of Section’sNeutral Axis (set automatically by STRINGcommand).

Posend E 0mm N 0mm U 0mmEnd Position. Coordinates of end of Section’s NeutralAxis (set automatically by STRING command).

Joistart Nulref Reference to connected Joint (if any) at Section’s start (set automatically when start is connected to a Joint).Joiend Nulref Reference to connected Joint (if any) at Section’s end

(set automatically when end is connected to a Joint).Jline 0 Joining Line. Defines p-line on which origins of

connected Joints are to be positioned.JustPline unset Justification pline. Identifies pline to be used as

datum for aligning SCTN with another element.MemLine unset Member line. Identifies pline to be used to represent

SCTN for drawing, dimensioning, etc.Ctystart 0 Start Connection Type. Defines type of Joint

connection (Joint’s CTYA) to which Section’s startis connected.



6-9

Ctyend 0 End Connection Type. Defines type of Jointconnection (Joint’s CTYA) to which Section’s end isconnected.

Srelease Start Release. Defines how Section’s start may moveunder effect of applied forces and moments.

Erelease End Release. Defines how Section’s end may moveunder effect of applied forces and moments.

Grade 0 Material Grade.Matref Nulref Material Reference.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Inref Nulref Insulation Reference.Spref Nulref Specification Reference. Defines cross-sectional

geometry of Section. Must refer to existing Profile inCatalogue.

Antype unset Analysis Type. For stress analysis purposes only.Desparam unset Design Parameters. 100-fold real array used to store

additional data related to Section; e.g., positions ofancillary items (like web stiffeners) or additionalJoint dimensions.


Legal Members: SNOD, FITT, SPLO, SDLO, CMFI, SELJ, NBOX, NCYL, NCON,NPYR, NSLC, NCTO, NSNO, NRTO, NDIS, NXTR, NREV, NRUL,TMPL, DPSE, DDSE, PORS, LNKS



Version 11.3

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Generic Section Element (GENSEC) Structural Design Element

Description: A GENSEC can represent any component whose geometry is definedby sweeping a 2D profile along a linear or curved path (its SPINEelement). It has a uniform cross-section along its length, defined byreference to a Catalogue Profile element. In its simplest form, wherethe Spine is defined as a line between two fixed points, the GENSECcan be used as an alternative to the SCTN element. In its moregeneral form, where the Spine consists of a sequence of straight and/orcurved segments, it can represent curved beams, curved walls, etc.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Bangle 0 Beta Angle. Orientation of profile about direction of

Spine, measured clockwise from YDIR of Spine.Lmirror false Mirror flag. If true, mirrors profile geometry about Y

axis (equivalent to flipping a linear section).Position E 0mm N 0mm U 0mmOrient Y is N and Z is UJoistart Nulref Reference to connected Fixing or Joint at start.Joiend Nulref Reference to connected Fixing or Joint at endJlnstart unset Start Joint pline. Aligns attached joint at start.Jlnend unset End Joint line. Aligns attached joint at end.JusLine unset Justification pline. Identifies pline to be used as

datum for aligning GENSEC.MemLine unset Member line. Identifies pline to be used to represent

GENSEC for drawing, dimensioning, etc.Ctystart unset Start Connection Type. Defines type of Joint

connection (Joint’s CTYA) to which start isconnected.

Ctyend unset End Connection Type. Defines type of Jointconnection (Joint’s CTYA) to which end is connected.

Srelease Start Release. For stress analysis purposes only.Erelease End Release. For stress analysis purposes only.Grade 0 Material Grade.Matref Nulref Material Reference.



6-11

Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Inref Nulref Insulation Reference.Spref Nulref Specification Reference. Defines cross-sectional

geometry of GENSEC. Must refer to existing Profilein Catalogue.

Antype unset Analysis Type. For stress analysis purposes only.Desparam unset Design Parameters. 100-fold real array used to store

additional data related to GENSEC; e.g. positions ofancillary items.

Legal Owners: FRMW, SBFR, WALL, TMPL

Legal Members: SPINE, JLDATU, DDSE, DPSE, LNKS, PORS, TMPL

= SPINE= POINSP

Start POINSP

End POINSP

PROFILE

CURVE

CURVE

Figure 6-24 Defining a GENSEC



Version 11.3

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Spine Element (SPINE) Structural Design Element

Description: A SPINE defines the path through which a cross-sectional Profilemust be swept to generate a GENSEC. The route of the Spine isdefined by a sequence of Spine Points (POINSP): one at the start, oneat the end, and one at each change of direction. Each segment linkingadjacent Spine Points can be either a straight line or an arc of a circle:the latter is achieved by the insertion of a CURVE element (see Figure16-24).

Attributes:Name /nameLock falseOwner /nameYdir U Local Y axis direction. Defines orientation of

cross-section profile at start of owning GENSEC.Drnstart Start Direction. Direction of normal to end-cutting

plane at first Spine Point.Drnend End Direction. Direction of normal to end-cutting

plane at last Spine Point.

Legal Owners: GENSEC

Legal Members: POINSP, CURVE



6-13

Spine Point Element (POINSP) Structural Design Element

Description: A POINSP element defines the start and end of a Spine path, and anylocation along the path at which there is a change of direction.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mm

Legal Owners: SPINE

Legal Members: None



Version 11.3

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Curve Element (CURVE) Structural Design Element

Description: A CURVE element defines a segment of a Spine path. It defines thegeometry of the Spine between the POINSPs either side of it in themembers list.

Attributes:Name /nameLock falseOwner /nameCurTyp unset Curve Type: LINE, RADI, THRU, BULG, FILL,

CENT. (See Section 10.13.3.)Position E 0mm N 0mm U 0mm

Defines a critical position for the Curve, depending onthe Curve Type setting.

Radius 0 mm Radius value (for types RADI, FILL, CENT).Radsetflag true If True, Radius is fixed; If False, limiting radius

determined by positions of adjacent Spline Points.Bulge 0 Bulge factor (for type BULG only).Cpos E 0mm N 0mm U 0mm

Conditioning Point. Selects, for example, plane ofCurve or one from set of possible Curves (for typesRADI, BULG, CENT).

Zdir U

Legal Owners: SPINE

Legal Members: None



6-15

Justification Line Datum Element (JLDATUM)Structural Design Element

Description: Defines the frame of reference for its member PLDATUM elementsbased on the pline system of its owning GENSEC. (Replaces thefunction of the SNODE used by SCTNs.)

Attributes:Name /nameLock falseOwner /nameLevel 0 10 Drawing level to control displayed symbol.Number 0Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textTPRef Nulref Reference to a POINSP of owning GENSEC. Sets

start position from which interpolated points arederived.

HPRef Nulref Reference to a POINSP of owning GENSEC. Sets endposition from which interpolated points are derived.

Zdist 0mm Distance along JUSL or NA pline from PKDIS,measured in direction from TPREF to HPREF.

Pkdist 0 Proportional position between TPREF and HPREF.

Legal Owners: GENSEC

Legal Members: PLDATUM



Version 11.3

6-16

Pline Datum Element (PLDATUM) Structural Design Element

Description: Defines the frame of reference for its members based on thenominated pline (POSL) system of its owning JLDATUM. Used toposition Fixings, Joints or Fittings along a GENSEC.

Attributes:Name /nameLock falseOwner /nameLevel 0 10 Drawing level to control displayed symbol.Number 0Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textPosline unset Positioning Line. Pline of GENSEC along which

Zdistance is measured to obtain origin for frame ofreference.

Ydirection U Defines direction of Y axis relative to axial system ofJLDATUM.

Legal Owners: JLDATUM

Legal Members: FIXING



6-17

Secondary Node Element (SNODE) Structural Design Element

Description: The SNODE is a fundamental ‘analytical’ point of connection betweenSections in an interconnected steelwork structure. Its position is usedto define the placing of Sections within the design model and as areference point for stress analytical calculations on the interconnectedstructure. Its position is defined relative to an owning Section (cf. thePrimary Node element, whose position is defined relative to thecoordinate system of the parent Structure).

Attributes:Name /nameLock falseOwner /nameLevel 0 10Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Zdistance 0mm Node position defined in terms of distance along

Z-axis of its owning Section.Fixty Free Fixity. Text defining degrees of freedom of movement

under influence of applied forces or moments (forstress analysis purposes). GTSTRUDL, for example,recognises two settings: Free or Support.

Legal Owners: SCTN

Legal Members: SJOI, RELE, NOLO, NODI, SCOJ, DPSE, DDSE, PORS, LNKS



Version 11.3

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Secondary Joint Element (SJOINT) Structural Design Element

Description: The SJOINT element is used to make a logical connection between twoSections in an interconnected steelwork structure. Its position isdefined relative to that of a SNOD (cf. PJOINT element).

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Delposition E 0mm N 0mm U 0mm

Delta position. Defines position of Joint with respectto that of owning SNOD (i.e. Joint-to-Node offset).

Posline 0 Positioning Line. Defines position of Joint’s originwith respect to Section’s p-lines. Derived fromCatalogue Joint; usually set to NA (Neutral Axis).


Cutback 0mm Specifies length by which a Section attached to theJoint should be reduced or extended to allow forfitting geometry.


Cref Nulref Connection reference. Points to an attached Section.Jline 0 Joining Line. Defines position of Joint with respect to

p-lines of an attached Section.Grade 0 Material Grade.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Inref Nulref Insulation Reference.Spref Nulref Specification Reference. Must refer to existing Joint

component in Catalogue.



6-19

Desparam unset Design Parameters. 100-fold real array used to conveydata between Joint component as defined inCatalogue and physical Joint as incorporated intothe design.

JFree unset Defines Joint dominance.

Legal Owners: SNOD




Version 11.3

6-20

Primary Compound Joint Element (PCOJ) Structural Design Element

Description: The Primary Compound Joint is used where two or more attachedsections are connected at a common Primary Node (representing, forexample, a gusset plate). It owns a separate SubJoint for eachconnection.


Delta position. Defines position of Joint with respectto that of owning PNOD (i.e. Joint-to-Node offset).

Opdirection U Origin Plane direction. Partly defines orientation ofJoint (depends on definition of Joint in Catalogue).

Bangle 0 Beta Angle. Angle of rotation about Joint’s OriginPlanedirection. Partly defines orientation of Joint(depends on definition of Joint in Catalogue).

Grade 0 Material Grade.Ispec Nulref Insulation Specification.Fireresist 0 Fire Resistance.Inref Nulref Insulation Reference.Spref Nulref Specification Reference. Must refer to existing Joint

component in Catalogue.Desparam unset Design Parameters. 100-fold real array used to

convey data between Joint component as defined inCatalogue and physical Joint as incorporated intothe design.

Legal Owners: PNOD

Legal Members: SUBJ, TMPL, DPSE, DDSE, PORS, LNKS



6-21

Secondary Compound Joint Element (SCOJ)Structural Design Element

Description: The Secondary Compound Joint is used where two or more attachedsections are connected at a common Secondary Node (representing, forexample, a gusset plate). It owns a separate SubJoint for eachconnection.


Delta position. Defines position of Joint with respectto that of owning SNOD (i.e. Joint-to-Node offset).


Posline 0 Positioning Line. Defines position of Joint’s originwith respect to Section’s p-lines. Derived fromCatalogue Joint; usually set to NA (Neutral Axis).

Grade 0 Material Grade.Ispec Nulref Insulation Specification.Fireresist 0 Fire Resistance.Inreference Nulref Insulation Reference.Spref Nulref Specification Reference. Must refer to existing Joint

component in Catalogue.Desparam unset Design Parameters. 100-fold real array used to convey

Catalogue and physical Joint as incorporated into thedesign.

Legal Owners: SNOD

Legal Members: SUBJ, TMPL, DPSE, DDSE, PORS, LNKS



Version 11.3

6-22

SubJoint Element (SUBJ) Structural Design Element

Description: The SUBJ is used to make a logical connection as part of a Primary orSecondary Compound Joint.


Delta position. Defines offset of SubJoint with respectto position of owning Compound Joint.


Arrive 0 P-point of owning Compound Joint at which origin ofSUBJ is positioned.

Zdirection U Orientation of Z axis.Cutback 0mm Specifies length by which a Section attached to the

Joint should be reduced or extended to allow forfitting geometry.


Cref Nulref Connection reference. Points to an attached Section.Jline unset Joining Line. Defines position of Joint with respect to

the p-lines of an attached Section.Grade 0 Material Grade.Ispec Nulref Insulation Specification.Fireresist 0 Fire Resistance.Inref Nulref Insulation Reference.Spref Nulref Specification Reference. Must refer to existing Joint


data between Joint component as defined inCatalogue and physical Joint as incorporated into thedesign.

JFree unset Defines Joint dominance.



6-23

Legal Owners: PCOJ, SCOJ




Version 11.3

6-24

Fitting Element (FITT) Structural Design Element

Description: A FITT can be used to represent any item which is attached to theStructure but which does not form an integral part of it. It may beused to indicate such things as the presence of a connected impliedload, such as a pipe hanger attachment, or an ancillary item such as aweb stiffener or a flange plate.

• A FITT is positioned along the Z axis of its owning Section, in thesame way as a Secondary Node.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Zdistance 0mm Fitting position defined in terms of distance along

Z-axis of its owning Section.Delposition E 0mm N 0mm U 0mm

Delta position. Defines offset of Fitting with respectto position of Node.

Posline 0 Positioning Line. Defines position of Fitting’s originwith respect to Section’s p-lines. Derived fromCatalogue Fitting; usually set to NA (Neutral Axis).

Bangle 0 Beta Angle. Angle of rotation about Fitting’s OriginPlane direction. Partly defines orientation of Fitting(depends on definition of Fitting in Catalogue).

Cref Nulref Connection reference. Points to a reference whichidentifies a connected Hanger, an Equipment LoadPoint, etc.

Grade 0 Material Grade.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Inref Nulref Insulation Reference.Matref Nulref Material Reference.Spref Nulref Specification Reference. Must refer to existing Fitting


data between Fitting component as defined inCatalogue and physical Fitting as incorporated intothe design.



6-25

Legal Owners: SCTN

Legal Members: RELE, NOLO, NODI, TMPL, DPSE, DDSE, PORS, LNKS



Version 11.3

6-26

Compound Fitting Element (CMFI) Structural Design Element

Description: A CMFI can be used to represent a penetration at which one or moreelements (Pipes or Sections) pass through a hole in a Section. Theposition of each individual penetrating item is represented by aSubfitting (SBFI) element owned by the CMFI; the CMFI is primarilyan administrative element used to position a group of SBFI.A CMFI is positioned along the Z axis of its owning Section, in the sameway as a Secondary Node.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Zdistance 0mm Compound Fitting position defined in terms of

distance along Z-axis of its owning Section.Delposition E 0mm N 0mm U 0mm

Delta position. Defines offset of Compound Fittingwith respect to position derived from ZDIS and POSL

Posline unset Positioning Line. Defines Section p-line along whichorigin of Compound Fitting is positioned. Derivedfrom Catalogue Fitting; usually set to NA (NeutralAxis).

Bangle 0 Beta Angle. Angle of rotation about Fitting’s OriginPlane direction (Z axis). Partly defines orientation ofFitting (depends on definition of Fitting inCatalogue).


component in Catalogue.Desparam unset Design Parameters. 100-fold real array, used to

convey data between Fitting component as defined inCatalogue and physical Fitting as incorporated intothe design.



6-27

Legal Owners: SCTN

Legal Members: SBFI, RELE, NODI, TMPL, DPSE, DDSE, PORS, LNKS, NOLO



Version 11.3

6-28

Subfitting Element (SBFI) Structural Design Element

Description: A SBFI can represent a single penetration at which a Pipe or Sectionpasses through a hole in a Panel or Section. Multiple penetrations arerepresented by a group of SBFIs (one for each penetrating item) ownedby a common Compound Fitting (CMFI) or Compound Panel Fitting(CMPF) element.


Delta position. Defines offset of Subfitting withrespect to owning CMFI or CMPF.

Bangle 0 Beta Angle. Angle of rotation about Fitting’s OriginPlane direction (Z axis). Partly defines orientation ofFitting (depends on definition of Fitting inCatalogue).

Arrive 0 P-point of owning Compound Fitting at which originof SBFI is positioned.

Zdirection U Orientation of Z axis.Cref Nulref Connection reference. Points to a reference which

identifies a connected Hanger, an Equipment LoadPoint, etc.



data between Fitting component as defined inCatalogue and physical Fitting as incorporated intothe design.

Legal Owners: CMFI, CMPF




6-29

Generic Fixing Element (FIXING) Structural Design Element

Description: A FIXING can represent any fitting or joint owned (indirectly) by aGENSEC. It serves a similar function to elements such as FITT,CMFI, SBFI, PCOJ, SCOJ, but in a more generalised way.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Position E 0mm N 0mm U 0mmOrient Y is N and Z is UCref Nulref Connection reference. Points to a reference which

identifies a connected Hanger etc. (when representinga fitting) or attached section (when representing ajoint).

Cfra unset Connection reference array.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Inref Nulref Insulation Reference.Matref Nulref Material Reference.Spref Nulref Specification Reference. Must refer to existing Fitting

or Joint component in Catalogue.Desparam unset Design Parameters. 100-fold real array used to convey

data between Fixing component as defined inCatalogue and physical Fixing as incorporated intothe design

Cutback 0mm Specifies length by which Section attached to Fixingshould be reduced or extended to allow for fixinggeometry.

Cutplane U Cutting Plane Direction. Defines direction of planewhich forms cut end of Section attached at the Fixing.

JFree false Defines joint dominance.Jline unset Joining Line. Defines position of Fixing, used as a

Joint, with respect to plines of attached Section.

Legal Owners: PLDATUM, FIXI, PNOD

Legal Members: FIXING, TMPL, DPSE, DDSE, PORS, LNKS



Version 11.3

6-30

Routing Plane Group (RPLG) Structural Design Element

Description: The RPLG is a grouping element whose members may be SteelworkRPLANEs (see next entry), as opposed to the Piping RPLANEsdescribed in Chapter 7.

Attributes:Name /nameLock falseOwner /nameFunction unset 120 character text

Legal Owners: STRU

Legal Members: RPLA



6-31

Routing Plane Element (RPLANE) Structural Design Element

Description: The RPLANE is a planar element that may be used as a constructionguide (e.g. for representing setting-out or grid lines) when defining thepositions of other steelwork elements.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is ULevel 0 10Obstruct 1Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character textXlength 0mmYlength 0mm

Legal Owners: RPLG, STRU (in the current context)

Legal Members: None



Version 11.3

6-32

Panel Element (PANEL) Structural Design Element

Description: The PANEL element is used to represent sheet materials (walls,floors, decking, etc.) used to clad the structure. It is defined bysweeping a profile representing the panel’s shape (the Panel Loop.PLOOP) through a given distance (equivalent to the panel thickness) -see Figure 6-25.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UGtype unsetShop falseBuilt falseLevel 0 10Obstruct 2Descript unset 120 character textFunction unset 120 character textNumber 0Spref Nulref Specification reference.Matref Nulref Material reference.Grade 0 Material grade.Ispec Nulref Insulation specification.Firesist 0 Fire Resistance.

= Panel Loop (PLOO)

= Panel Vertex (PAVE)

Height

Origin ofPANE

Z axis of PANE

of PANE

Figure 6-25 Defining a PANE



6-33


Legal Members: PLOO, PALJ, PFIT, COFI, CMPF, NBOX, NCYL, NCON, NPYR,NSLC, NCTO, NSNO, NRTO, NDIS, NXTR, NREV, NRUL, DPSE,DDSE, PORS, LNKS



Version 11.3

6-34

Panel Loop Element (PLOO) Structural Design Element

Description: The PLOOP represents a 2D profile which defines the shape of aPanel. It is defined as a set of edges linking adjacent pointsrepresented by Panel Vertex (PAVE) elements.

Attributes:Name /nameLock falseOwner /nameHeight 0 Distance through which PLOO is extruded in Z

direction to form Panel (i.e. panel thickness).Sjust unset Surface Justification. Defines justification plane (top,

centre or bottom of panel).Spref Nulref Specification referenceMatref Nulref Material reference

Legal Owners: PANE

Legal Members: PAVE



6-35

Panel Vertex Element (PAVE) Structural Design Element

Description: A PAVE element defines each vertex of a Panel Loop or each connectedend of a Panel Linear Joint.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falsePosition E 0mm N 0mm U 0mm (Note: the Up coordinate is ignored)Number 0Bangle 0 Beta Angle. Angle of rotation about Z-axis.Fradius 0 Fillet radius of Panel Loop at vertex position. +ve radius curves away from vertex; -ve radius curves towards vertex; zero radius gives point only.

Spref Nulref Specification referenceMatref Nulref Material referenceDate unsetMvertex Nulref Master vertexDesparam unset Design Parameters. 100-fold real array, used to

convey data between item as defined in Catalogueand physical item as incorporated into the design.

Ctyattached unset Attached connection type.

Legal Owners: PLOO, PALJ

Legal Members: NOLO, SPLO, NODI, RELE, SDLO



Version 11.3

6-36

Panel Linear Joint Element (PALJ) Structural Design Element

Description: A Panel Linear Joint is used to connect two Panels together. The startand end of the PALJ are defined by two Panel Vertex (PAVE) points.Logical connections from the attached Panel are made by settingMaster Vertex (MVERT) attributes of two of the Panel’s PAVEs topoint to the corresponding PAVEs on the linear joint.

Attributes:Name /nameLock falseOwner /nameShop falseBuilt falseGtype unsetDescript unset 120 character textFunction unset 120 character textNumber 0Spref Nulref Specification referenceMatref Nulref Material referenceDate unsetSjust unset Surface justification. Defines justification plane (top,

centre or bottom of panel) for positioning joint.

Legal Owners: SBFR, PANE

Legal Members: PAVE



6-37

Section Linear Joint Element (SELJ) Structural Design Element

Description: A Section Linear Joint is used to connect a Panel to a Section. Thestart and end of the SELJ are defined by two Section Vertex (SEVE)points. Logical connections from the attached Panel are made bysetting Master Vertex (MVERT) attributes of two of the Panel’sPAVEs to point to the corresponding SEVEs on the linear joint.

Attributes:Name /nameLock falseOwner /nameShop falseBuilt falseGtype unsetDescript unset 120 character textFunction unset 120 character textNumber 0Spref Nulref Specification referenceMatref Nulref Material referenceDate unset

Legal Owners: SBFR, PANE

Legal Members: SEVE



Version 11.3

6-38

Section Vertex Element (SEVE) Structural Design Element

Description: A SEVE element defines each connected end of a Section Linear Joint.

Attributes:Name /nameLock falseOwner /nameGtype unsetShop falseBuilt falseNumber 0Bangle 0 Beta Angle. Angle of rotation about Z-axis.Delposition E 0mm N 0mm U 0mm

Delta position. Defines offset of SEVE with respect toowner.

Fradius 0 Fillet radius at vertex position. +ve radius curvesaway from vertex; -ve radius curves towards vertex;zero radius gives point only.

Posline unset Position line (p-line on which vertex is located)Zdistance 0mm Vertex position defined in terms of distance along

Z-axis of Section.Spref Nulref Specification referenceMatref Nulref Material referenceDate unsetMvertex Nulref Master vertex.Desparam unset Design Parameters. 100-fold real array, used to

convey data between item as defined in Catalogueand physical item as incorporated into the design.

Ctyattached unset Attached connection type.

Legal Owners: PLOO, PALJ



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Panel Fitting Element (PFIT) Structural Design Element

Description: A PANEL FITTING can be used to represent any item which isattached to a Panel. It may be used to indicate such things as thepresence of a penetrating item or an ancillary item such as aninspection cover, doorway etc.

• A PFIT is positioned relative to the origin of its owning Panel.Attributes:

Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mm

Position with respect to the Panel’s origin.Gtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Bangle 0 Beta Angle. Angle of rotation about Z axis.Sjust unset Surface justification.Cref Nulref Connection reference. Points to a reference which

identifies a penetrating item etc.Crfa unset Connection reference array.Grade 0 Material Grade.Ispec Nulref Insulation Specification.Inref Nulref Insulation Reference.Firesist 0 Fire Resistance.Spref Nulref Specification Reference. Must refer to existing


data between component as defined in Catalogue andphysical Fitting as incorporated into the design.

Legal Owners: PANE




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Panel Cofitting Element (COFI) Structural Design Element

Description: A PANEL COFITTING is used where a fitting or penetration spansthe junction between two or more panels. One panel owns a PFIT,while the others each own a COFI. Each COFI refers back to theassociated PFIT via its PFRE (PFIT Reference attribute).

Attributes:Name /nameLock falseOwner /namePfreference Nulref PFIT reference.

Legal Owners: PANE

Legal Members: None



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Compound Panel Fitting Element (CMPF) Structural Design Element

Description: A CMPF can be used to represent a penetration at which one or moreelements (Pipes or Sections) pass through a hole in a Panel. Theposition of each individual penetrating item is represented by aSubfitting (SBFI) element owned by the CMPF; the CMPF is primarilyan administrative element used to position a group of SBFIs.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mm

Position with respect to the Panel’s origin.Gtype unsetShop falseBuilt falseDescript unset 120 character textFunction unset 120 character textNumber 0Bangle 0 Beta Angle. Angle of rotation about Z axis.Sjust unset Surface justification.Grade 0 Material Grade.Crfa unset Connection reference array.Ispec Nulref Insulation Specification.Firesist 0 Fire Resistance.Inref Nulref Insulation Reference.Matref Nulref Material Reference.Spref Nulref Specification Reference. Must refer to existing Fitting

component in Catalogue.

Desparam unset Design Parameters. 100-fold real array used toconvey data between Fitting component as definedin Catalogue and physical Fitting as incorporatedinto the design.

Legal Owners: PANE

Legal Members: SBFI, TMPL, DPSE, DDSE, PORS, LNKS



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6.2 The Stress Analysis Elements

This section defines those elements which are accessed only during stressanalysis of an interconnected steelwork structure. For further details of theways in which their settings are extracted for use by separate stress analysispackages, see the SAINT Reference Manual.



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Load Case Descriptor Element (LCDE) Stress Analysis Element

Description: The LCDE element allows you to supply a detailed description of thetypes of loading case that are to be considered as being applied duringstress analysis of the Structure. Any element without a LCDE will beignored during stress analysis.

Attributes:Name /nameLock falseOwner /nameLcase 0 Load Case Number. A reference number which

identifies a given descriptive text (Stext). The samenumber is assigned to the LCAS attribute of any ofthe following elements to which the correspondingdescription applies.

Stext unset Holds the descriptive text used to describe the LoadCase associated with a given Load Case Number.

Legal Owners: STRU

Legal Members: None



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Nodal Release Element (RELEASE) Stress Analysis Element

Description: The RELE element is used to define how a stressed structure may flexunder the influence of applied forces or moments. Its attribute settingscontrol both directional and rotational movement at its owning Node.The Release directions are specified relative to a locally defined axissystem.

Attributes:Name /nameLock falseOwner /nameDescript unset 120 character textNrelease Nodal Release. Holds a ‘coding’ integer which defines

the settings (DX, DY, DZ, RX, RY, RZ) for permitteddirectional and rotational movement of the Nodeunder the influence of applied forces and moments.

Laxes Y is N and Z is ULocal Axes. Orientation of RELE axes relative tothoseof Structure within which owning Node is positioned.

Dflfactors 0 0 0 Directional Force Load Factors. Represent‘translational spring’ values (restoring forces) in X, Y,and Z directions.

Rflfactors 0 0 0 Rotational Force Load Factors. Represent ‘rotationalspring’ values (restoring moments) about X,Y,Z axes.

Legal Owners: PNOD, SNODLegal Members: None



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Nodal Load Element (NOLO) Stress Analysis Element

Description: The NOLO element is used to apply forces or moments to its owningNode. The forces and moments are specified relative to a locallydefined axis system (LAXES).

Attributes:Name /nameLock falseOwner /nameDescript unset 120 character textLcase 0 Load Case Number. A reference number which


Laxes Y is N and Z is ULocal Axes. Orientation of NOLO axes relative tothose of Structure within which owning Node ispositioned.

Force 0 0 0 Defines force to be applied in each of X, Y and Zdirections.

Moment 0 0 0 Defines moment to be applied about each of X, Y andZ axes.

Legal Owners: PNOD, SNOD

Legal Members: None



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Nodal Displacement Element (NODI) Stress Analysis Element

Description: The NODI element allows you to apply directional or rotationaldisplacement results or preconditions to a Structure. Thedisplacements are specified relative to a locally defined axis system.



Laxes Y is N and Z is ULocal Axes. Defines orientation of NODI axes relativeto those of Structure within which owning Node ispositioned.

Displace 0mm 0mm 0mmDefines linear displacement in each of X, Y and Zdirections.

Rotation 0 0 0 Defines rotational displacement about each of X, Yand Z axes.

Legal Owners: PNOD, SNOD

Legal Members: None



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Section Point Load Element (SPLO) Stress Analysis Element

Description: The SPLO element allows you to apply forces or moments at givenpoints on the Neutral Axis of a Section. The forces and moments arespecified relative to the axis system of the parent Structure.

Attributes:Name /nameLock falseOwner /nameDescript unset 120 character textZdistance 0mm Position at which forces or moments are to be applied,

expressed as distance along Neutral Axis measuredfrom Section’s start point.

Lcase 0 Load Case Number. A reference number whichidentifies a given descriptive text (Stext). The samenumber is assigned to the LCAS attribute of any ofthe following elements to which the correspondingdescription applies.

Force 0 0 0 Defines force to be applied in each of X, Y and Zdirections.

Moment 0 0 0 Defines moment to be applied about each of X, Y andZ axes.

Legal Owners: SCTN

Legal Members: None



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Section Distributed Load Element (SDLO) Stress Analysis Element

Description: The SDLO element allows you to apply forces or moments distributedover a specified length of the Neutral Axis of a Section. Stress analysiscalculations assume a linear interpolation of such a force or momentover the specified part of the Section. The forces and moments arespecified relative to the axis system of the parent Structure.



Szdist 0mm Start position of length over which force or moment isto be applied, expressed as distance along NeutralAxis measured from Section’s start point.

Ezdist 0mm End position of length over which force or moment isto be applied, expressed as distance along NeutralAxis measured from Section’s start point.

Sforce 0 0 0 Forces to be applied at SZDI position.Eforce 0 0 0 Forces to be applied at EZDI position.Smoment 0 0 0 Moments to be applied at SZDI position.Emoment 0 0 0 Moments to be applied at EZDI position.Width 0mm

Legal Owners: SCTN

Legal Members: None


7 The Piping Elements

This section describes those elements of the Design hierarchy that allowPiping to be modelled. These include all routed items - pipes, ducting, cabletrays and hangers. The elements described here obtain most of their physicalappearance from the PDMS Catalogue, although unique attributes such asposition are held in the Design hierarchy. The basic Components of a route areorganised into a sequence which represents its Head-to-Tail logic. It istherefore important with these elements to control their location within thehierarchy carefully (as achieved by the routing commands).

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7.1 The Main Piping Elements

Pipe Element (PIPE) Main Piping Element

Description: The PIPE is an administrative owner of one or more two-endedBRANCHes. Usually a PIPE will include a principle BRANCH routedbetween two NOZZLES, with subsidiary BRANCHes for control loops,bypasses to spare pumps etc. The PIPE contains functional attributesof three types:

• Those which are used directly from the PIPE element (by modulessuch as ISODRAFT) as a collective attribute for all the BRANCHesin the PIPE, e.g. Pipe Spec (PSPE).

• Those which have no direct significance at PIPE level, but whichare cascaded downwards to member BRANCHes (or evenComponents) where they perform a particular function, e.g.TEMPERATURE - only used by Branch for insulation, stressingetc.

• Information attributes that can only be reported on, e.g. BUILT.Attributes:

Name /nameLock falseOwner /nameBuilt falseShop falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character text

The following attributes have functional significance at PIPE level:

Temp -100000 Temperature rating. Used by the detailing interfaces.Pspec Nulref Pipe Specification. Used by modules such as

ISODRAFT, which places it in the title block of theisometric.

Ispec Nulref Insulation Specification. Used by ISODRAFT.Tspec Nulref Trace heating Specification. Used by ISODRAFT.Ptspec unset Paint Specification. Used in ISODRAFT.Revision -1 Revision. Used by ISODRAFT, which automatically

increments value and places it in isometric title block.

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The following attributes only have a functional significance below PIPE leveland are cascaded from the PIPE setting:

Lntp 0 Line Type IdentificationErection 0 Erection ClassPressure 0 Pressure ratingMatref Nulref Material ReferenceFluref Nulref Fluid ReferenceCasref Nulref Case Reference

The following attributes are used to store information:

Dscode unset Design Code (text)Insched unset Inspection Schedule (text)Duty unset Fluid flowing through pipe (text)Ccentre 0 Cost CentreCclass 0 Cost ClassSafclass 0 Safety ClassBore 0mm Nominal Bore (no physical significance)Skey unset A code which indicates the symbol and annotating


The following attributes are used by the Spooling application only:

Lissue false Status flag showing if drawing has been issued or not.Wmax 0 Maximum Weld Number used.Pmax 0 Maximum Part Number used.Smax 0 Maximum Spool Number used.Jmax 0 Maximum Joint Number used.Drrf Nulref Drawing reference.Cdrg unsetCnumber unsetCarea unsetSplp unset Spool prefix text.

Legal Owners: ZONE

Legal Members: BRAN, TEXT, REST

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Branch Element (BRANCH) Main Piping Element

Description: The BRANCH is the key element for all routed piping in the Designmodel. It represents a two-ended entity whose route is defined by itsHead, Tail and the sequence of Components (Members) between. ABRANCH Head or Tail may be connected to NOZZLEs, multi-wayComponents such as TEEs, or other BRANCH Heads or Tails.Alternatively, a Head or Tail may be positioned explicitly in space. (Allthe commands which control the Head and Tail attributes aredescribed in Chapter 11.) The remaining BRANCH attributes are for:

• Functional use• Information storage

Attributes:Name /nameLock falseOwner /nameBuilt falseShop false Shop fabricated flag. Cascades to Component level to

indicate shop or site fabrication for ISODRAFT.Descript unset 120 character textFunction unset 120 character textPurpose unset 120 character text

The functional attributes of BRANCH are as follows:

Detail false Can be set automatically by ISODRAFT to indicatethat Branch has been detailed.

Lstressed false Logical Stressed. Can be set by stress analysisprograms to show that Branch has been stressed.

Flowd unset Flow Direction. Used by ISODRAFT.Hstube Nulref Head Specification Tube. Describes Tube from Branch

Head to first Component.Pspec Nulref Pipe Specification. Used by Selection process to

search automatically for correct specification forBranch and its Components.

Ispec Nulref Insulation Specification. Cascades to Component levelto indicate insulation requirements for eachComponent.

Temp -100000 Temperature. Used to determine insulation thicknessfor each insulated Component of the Branch, or forstress analysis.

Lntp unset Line Type Identifier. Used by ISODRAFT to indicateif Branch is jacketed.

Erection 0 Erection Class. Indicates wastage grouping forISODRAFT.

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Pressure 0 Branch internal pressure rating. Used for stressanalysis.

Matref Nulref Material Reference (SOLID). Used for stress analysis,to override material specification for Branch.

Fluref Nulref Fluid Reference (FLUID). Used for stress analysis, tooverride fluid specification for Branch.

Casref Nulref Case Reference (GROUP). Indicates current stressingcase for stress analysis programs.

Tspec Nulref Trace heating Specification. Overrides PIPE tracingfor ISODRAFT (text).

Ptspec unset Paint Specification. Overrides PIPE paintspecification for ISODRAFT (text).

Splh unset Holds spool number for Branch Head Tube, for use byISODRAFT’s Repeatability function.

Hdmtype unset Head dimension type is a 2-fold word array used toset dimension format for ISODRAFT referencedimensioning.

Hdmfarray unset Head dimension array is a 2-fold reference arrayused to set names of reference elements forISODRAFT reference dimensioning.

Tdmtype unset Tail dimension type is a 2-fold word array used toset dimension format for ISODRAFT referencedimensioning.

Tdmfarray unset Tail dimension array is a 2-fold reference array usedto set names of reference elements for ISODRAFTreference dimensioning.

The Information attributes of BRANCH are as follows:

Dscode unset Design Code (text).Insched unset Inspection Schedule (text).Duty unset The fluid flowing through the pipe (text).Ccentre 0 Cost Centre.Cclass 0 Cost Class.Safclass 0 Safety Class.

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The following attributes are used by the Spooling application only (for use byISODRAFT):

Lissue false Status flag showing if drawing has been issued or not.Wmax 0 Maximum Weld Number used.Pmax 0 Maximum Part Number used.Smax 0 Maximum Spool Number used.Jmax 0 Maximum Joint Number used.Drrf Nulref Drawing reference.Spsp unset Spool prefix text.Mtoh unset Material take-off.Ptnarray unset Part number array.Jnum unset Joint number.Joip unset Joint prefix.

Head and Tail Attributes (see next section for further details):Lhead falseLtail falseHbore 0mmTbore 0mmHconn 0Tconn 0Href NulrefTref NulrefHpos E 0mm N 0mm U 0mmHdir ETpos E 0mm N 0mm U 0mmTdir E

Legal Owners: PIPE

Legal Members: ELBO, BEND, TEE, VALV, REDU, FLAN, CROSS, GASK, DUCT,VENT, FTUB, SHU, COUP, CLOS, OLET, LJSE, CAP, FBLI, VTWA,VFWA, TRAP, FILT, WELD, PCOM, UNION, INST, ATTA

The following elements are used for the HVAC design applicationonly:TAPE, TRNS, STRT, OFST, PLEN, PLAT, THRE, BRCO, MESH,GRIL, COWL, DAMP, HFAN, SILE, BATT, AHU, STIF, HACC, HSAD,IDAM, TP, SPLR, SKIR, FLEX

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Branch Head and Tail Main Piping Element

Keywords: HREF TREF HPOS TPOS HDIR TDIR HCON TCON HSTUBE HSROD

Description: When a BRANCH (or HANGER) is created, a Head and Tail areimmediately available to represent the two ends of that item. TheHead and Tail are special because they are not separate Designelements but rather attributes of the BRANCH (or HANGER). This isbecause they are always required, being the minimum informationnecessary to describe a two-ended entity.

If the Head and Tail are set up with no intermediate Components, thecontent of the Branch will be one piece of straight Tube (or Rod)running between them. When the BRANCH (or HANGER) is created,the Head and Tail have no position, orientation, bore or connectiontype. These can be set collectively by connecting to another BRANCHor a NOZZLE, or individually if positioning the BRANCH in freespace. They can also be referred to collectively as the PH and PT (orHH and HT) respectively. The Head and Tail attributes of BRANCH(and HANGER) are as follows:

Href,TrefThe name of the element to which the Head or Tail is connected (e.g. aNozzle, a Tee in another Branch, or another Branch Tail).

Hpos,TposThe Head or Tail position in Zone axes (PIPE has no POS attribute).

Hdir,TdirThe Head or Tail position in Zone axes (PIPE has no ORI attribute).

Hcon,TconThe connection type of the item to which the Head is connected (e.g.the flanged face of a Nozzle).

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Restraint Element (RESTRAINT) Main Piping Element

Description: The area of the hierarchy owned by the RESTRAINT element isprovided to allow modelling of pipe supports and hangers. TheRESTRAINT is an administrative element which can own HANGERelements in convenient groupings. It is analogous to the PIPE element.

Attributes:Name /nameLock falseOwner /nameDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0Hspec Nulref Hanger Specification (SPECI). Cascaded to the

HANGER element, which uses it for hanger selection.StlRef Nulref Steel reference; e.g. a pointer to an associated

substructure.

Legal Owners: ZONE, PIPE

Legal Members: HANG, TEXT

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Pipe Hanger Element (HANGER) Main Piping Element

Description: The HANGER is a two-ended entity which is routed between aBRANCH and supporting steelwork. It is analogous in many respectsto the BRANCH element and can own Components routed between aHead and Tail. The Head or Tail can be connected to a pipingattachment point (ATTA) or positioned specifically, e.g. on asupporting member. Its attributes can be classified as follows:

• Functional and Information attributes for the complete HANGER(described here).

• Head and Tail attributes (already described).Attributes:

Name /nameLock falseOwner /nameBuilt falseDescript unset 120 character textFunction unset 120 character textPurpose unset 120 character textNumber 0Area 0

The functional and information attributes of a HANGER are as follows:

Lhead falseLtail trueHpos E 0mm N 0mm U 0mmTpos E 0mm N 0mm U 0mmHdir ETdir EHref NulrefTref NulrefHconn 0Tconn 0Hbore 0mmTbore 0mmHspec Nulref Hanger Specification (SPECI). Used by Selection

process to search correct Specification automaticallyfor HANGER and its Components.

Hsrod Nulref Head Rod Specification. Describes Rod fromHANGER Head to first HANGER Component.

Htype unset Hanger Type (information only).Nload 0 Nominal Load (information only).

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Legal Owners: RESTR

Legal Members: PCLA, PCLI, PLUG, SHOE, UBOL, POST, TRNN, HELE, HROD,EYRD, RCDL, TRNB, WASH, CLEV, EYNT, HPIN, HNUT, VSPR,SWBR, SNUB, SCLA, SLUG, BWLD, BBLT, SOST, STLS, SPAC,WPAD

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7.2 The Hanger Components

Pipe Clamp Element (PCLAMP) Hanger Component

Description: Component for pipe clamps.

Attributes:Name /nameLock falseOwner /nameGtype unsetBuilt falseShop falsePosition E 0mm N 0mm U 0mmOrient Y is N and Z is USpref Nulref Specification Reference. Must refer to existing

component in Catalogue.Lsrod Nulref Leave Rod specification.Angle 90Arrive 1 P-arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been orientated.Height 0mmNload 0 Nominal load. Currently has no special significance.Desparam unset Design Parameters. 100-fold real array used to convey

data between component as defined in Catalogue andphysical item as incorporated into the design.

Crfa unset Connection reference array.

Legal Owners: HANG

Legal Members: None

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Steel Clamp Element (SCLAMP) Hanger Component

Description: Component for all connections to supporting steelwork.


component in Catalogue.Lsrod Nulref Leave Rod specification.Arrive 1 P--arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been orientated.Angle 90Height 0mmNload 0 Nominal load. Currently has no special significance.Desparam unset Design Parameters. 100-fold real array used to convey


Crfa unset Connection reference array.

Legal Owners: HANG

Legal Members: None

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Hanger Element (HELEMENT) Hanger Component


componen in Catalogue.Lsrod Nulref Leave Rod specification.Arrive 1 P-arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been orientated.Angle 90Height 0mmRadius 0mmDesparam unset Design Parameters. 100-fold real array used to convey


Crfa unset Connection reference array.Nload 0 Nominal load. Currently has no special significance.

Legal Owners: HANG

Legal Members: None

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7.3 Piping Components

Attachment Point Element (ATTA) Piping Component

Description: The ATTACHMENT point has three main applications:

• To allow pipe HANGERS to be connected to a point in theBRANCH

• To indicate a special point on the BRANCH which can bedimensioned, labelled, etc.

• To allow forces, moments, etc. to be applied to the BRANCH duringpipe stressing.

The ATTA is created, selected and consistency-checked in the sameway as other Components. However, it is ignored as an in-line fittingby the CONNECT command and is ignored by the reporting utilitywhen listing tube lengths.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseShop falseSpref Nulref Specification Reference.Lstube Nulref Leave tube specification.Arrive 1 P-arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been positioned.Ispec Nulref Insulation specification.Tspec Nulref Trace heating specification.Desparam unset Design Parameters. 100-fold real array used to convey


Cstref Nulref Constraint reference. Points to constraint(force/stiffness) vectors in Properties Catalogue forstressing purposes. As far as stress analysis isconcerned, this is the Hanger; no account is takenof the physical Hanger model.

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Cref Nulref Connection reference. Bears name of a Hanger thathas been connected to it. As far as ISODRAFT isconcerned, this identifies the Hanger; no account istaken of the physical Hanger model.

Laxes Y is N and Z is ULocal axes. Allows constraint vectors at that pointto be rotated independently of normal orientation.

Attype 0 Attachment type. Code used by ISODRAFT toindicatethe role of the ATTA as follows:

• Setting ATTY to ‘XXXX’ indicates to ISODRAFT that the ATTAmarks a user-controlled pipe splitting point

• Setting ATTY to ‘CCCC’ indicates to ISODRAFT that the ATTArepresents a general comment

• Setting ATTY to ‘CCNN’ indicates to ISODRAFT that the ATTArepresents a non-dimensional comment

• Setting ATTY to ‘FLOW’ causes ISODRAFT to plot in-line flowarrows

Stext unset Used by ISODRAFT to generate information note.Lend false Logical End. Flag used in stressing to indicate

breakpoint of legally stressable network.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by

ISODRAFT.Spsp unset Spool start/end specification for use by ISODRAFT.Dmtype unset Dimension type is a 2-fold word array used to set

dimension format for ISODRAFT referencedimensioning.

Dmfarray unset Dimension array is a 2-fold reference array used toset names of reference elements for ISODRAFTreference dimensioning.

Dpfn unset Detail plot file name for use by ISODRAFT.Dpgrid 0 Detail plotfile grid area for use by ISODRAFT.Mtoc unset Material take-off for Component in ISODRAFT.Mtot unset Material take-off for Tube in ISODRAFT.MtoRef unset Reference array holding up to 4 additional SPREFs

giving extra detail and material texts for the item onISODRAFTmaterial lists.

Mtoxarray unset Extra mto part numbers array for ISODRAFT.Ptno 0 Part number for component in ISODRAFT.Ptnt 0 Part number for tube in ISODRAFT.Ptnbarray unset Part number array for bolt sets in ISODRAFT.

Legal Owners: BRAN

Legal Members: None

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Bend Element (BEND) Piping Component

Description: Used where a bend is made in tubing. As the Implied Tube must bestraight, it is necessary to insert such a ‘Component’ where anychange of direction occurs. (This is not the same as an ELBO, which isa separate catalogue component.)



Cref Nulref Connection reference.Angle 90Radius 0mmLoffline true Logical offline flag.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by



Dmfarray unset Dimension array is a 2-fold reference array used toset names of reference elements for ISODRAFTreferencedimensioning.

Cmpx unset Component exclusion text for use by ISODRAFT.Dpfn unset Detail plot file name for use by ISODRAFT.Dpgrid 0 Detail plotfile grid area for use by ISODRAFT.Mtoc unset Material take-off for Component in ISODRAFT.Mtot unset Material take-off for Tube in ISODRAFT.

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MtoRef unset Reference array holding up to 4 additional SPREFsgiving extra detail and material texts for the item onISODRAFT material lists.

Mtoxarray unset Extra mto part numbers array for ISODRAFT.Ptno 0 Part number for component in ISODRAFT.Ptnt 0 Part number for tube in ISODRAFT.Ptnbarray unset Part number array for bolt sets in ISODRAFT.Jnum unset Joint number in ISODRAFT.Joip unset Joint prefix in ISODRAFT.

Legal Owners: BRAN

Legal Members: None

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Cap Element (CAP) Piping Component

Description: Component for capping a pipe.



Cref Nulref Connection reference.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by

ISODRAFT.Spsp unset Spool start/end specification for use by ISODRAFT.Cmpx unset Component exclusion text for use by ISODRAFT.Dpfn unset Detail plot file name for use by ISODRAFT.Dpgrid 0 Detail plotfile grid area for use by ISODRAFT.Mtoc unset Material take-off for Component in ISODRAFT.Mtot unset Material take-off for Tube in ISODRAFT.MtoRef unset Reference array holding up to 4 additional SPREFs

giving extra detail and material texts for the item onISODRAFT material lists.

Mtoxarray unset Extra mto part numbers array for ISODRAFT.Ptno unset Part number for component in ISODRAFT.Ptnt unset Part number for tube in ISODRAFT.Ptnbarray unset Part number array for bolt sets in ISODRAFT.Jnum unset Joint number in ISODRAFT.Joip unset Joint prefix in ISODRAFT.

Legal Owners: BRAN

Legal Members: None

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Closure Element (CLOS) Piping Component

Description: Component for piping closure.



Height 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




Legal Owners: BRAN

Legal Members: None

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Coupling Element (COUPLING) Piping Component

Description: Component for full or half couplings.







Legal Owners: BRAN

Legal Members: None

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Cross Element (CROSS) Piping Component

Description: Multi-way component for straight cross or reducing cross.



Cref Nulref Connection reference.Crfa unset Connection reference array.Angle 90Radius 0mmHeight 0mmLoffline false Logical offline flag.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by



Dmfarray unset Dimension array is a 2-fold reference array used toset names of reference elements for ISODRAFTreference dimensioning.


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Legal Owners: BRAN

Legal Members: None

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Duct Element (DUCT) Piping Component

Description: General component for rectangular HVAC ducting straights.







Legal Owners: BRAN

Legal Members: None

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Elbow Element (ELBOW) Piping Component

Description: Component for elbows and returns.



Cref Nulref Connection reference.Angle 90Radius 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by



Dmfarray unset Dimension array is a 2-fold reference array used toset

names of reference elements for ISODRAFT referencedimensioning.

Cmpx unset Component exclusion text for use by ISODRAFT.Dpfn unset Detail plot file name for use by ISODRAFT.Dpgrid 0 Detail plotfile grid area for use by ISODRAFT.Mtoc unset Material take-off for Component in ISODRAFT.Mtot unset Material take-off for Tube in ISODRAFT.MtoRef unset Reference array holding up to 4 additional SPREFs


The Piping Elements


7-25


Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-26

Blind Flange Element (FBLIND) Piping Component

Description: Component for blind flanges







Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-27

Filter Element (FILTER) Piping Component

Description: Component for filters.



Cref Nulref Connection reference.Angle 90Radius 0mmHeight 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-28

Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-29

Flange Element (FLANGE) Piping Component

Description: Component for all classes of flange



Cref Nulref Connection reference.Height 0mmLoose false Used by ISODRAFT to indicate where flange is to be

supplied loose. (ISODRAFT will add length of extrapipe and increase indicated cut length to allow forfield fitting.)

Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-30

Jnum unset Joint number in ISODRAFT.Joip unset Joint prefix in ISODRAFT.

Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-31

Fixed Length Tube Element (FTUBE) Piping Component

Description: This component is for stubs or tube of minimum allowed length. It iseasier to specify these as Components from a Specification where theminimum lengths are stored. However, unlike Implied Tube, thereporting utility does not currently add these lengths when totallingTube for a BRANCH.



Cref Nulref Connection reference.Height 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-32


Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-33

Gasket Element (GASKET) Piping Component

Description: Component for gaskets.



Cref Nulref Connection reference.Height 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-34

Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-35

Instrument Element (INSTRUMENT) Piping Component

Description: Component for in-line instruments (flow measurement, etc.).



Cref Nulref Connection reference.Angle 90Radius 0mmHeight 0mmLoffline false Logical offline flag.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-36


Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-37

Lap-Joint Stub-End Element (LJSE) Piping Component

Description: Component for lap-joint (or ‘Van Stone’) flanges.



Cref Nulref Connection reference.Height 0mmLoose false Used by ISODRAFT to indicate where flange is to be

supplied loose. (ISODRAFT will add length of extrapipe and increase indicated cut length to allow for

fieldfitting.)

Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by



Mtoxarray unset Extra mto part numbers array for ISODRAFT.Ptno 0 Part number for component in ISODRAFT.Ptnt 0 Part number for tube in ISODRAFT.

The Piping Elements


Version 11.3

7-38

Ptnbarray unset Part number array for bolt sets in ISODRAFT.Jnum unset Joint number in ISODRAFT.Joip unset Joint prefix in ISODRAFT.

Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-39

Olet Element (OLET) Piping Component

Description: Component for olets of all types.



Cref Nulref Connection reference.Angle 90Radius 0mmHeight 0mmLoffline false Logical offline flag.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by






The Piping Elements


Version 11.3

7-40



Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-41

General Piping Component Element (PCOMPONENT)Piping Component

Description: Element for any type of component not covered by the otherclassifications.






Mtoxarray unset Extra mto part numbers array for ISODRAFT.Ptno 0 Part number for component in ISODRAFT.

The Piping Elements


Version 11.3

7-42

Ptnt 0 Part number for tube in ISODRAFT.Ptnbarray unset Part number array for bolt sets in ISODRAFT.Jnum unset Joint number in ISODRAFT.Joip unset Joint prefix in ISODRAFT.

Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-43

Reducer Element (REDUCER) Piping Component

Description: Component for all classes of reducers, swages, inserts etc.







Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-44

Standard Hook-Up Element (SHU) Piping Component

Description: Component for general usage by items not covered by the otherComponent types.



Cref Nulref Connection reference.Crfa unset Connection reference array.Angle 90Radius 0mmHeight 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


7-45


Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-46

Tee Element (TEE)

Description: Component for all classes of tee, lateral, set-on branch, stub-ins, etc.








Cmpx unset Component exclusion text for use by ISODRAFT.Dpfn unset Detail plot file name for use by ISODRAFT.Dpgrid 0 Detail plotfile grid area for use by ISODRAFT.Mtoc unset Material take-off for Component in ISODRAFT.

The Piping Elements


7-47

Mtot unset Material take-off for Tube in ISODRAFT.MtoRef unset Reference array holding up to 4 additional SPREFs



Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-48

Trap Element (TRAP) Piping Component

Description: Component for all classes of separators, strainers, screens anddriplegs.







The Piping Elements


7-49


Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-50

Union Element (UNION) Piping Component

Description: Component for any class of union, connector or bushing.







The Piping Elements


7-51

Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-52

Valve Element (VALVE) Piping Component

Description: Component for all classes of two-way valve.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseShop falseSpref Nulref Specification Reference.Lstube Nulref Leave tube specification.Arrive 1 P-arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been positioned.Ispec Nulref Insulation specification.Tspec Nulref Trace heating specification.Desparam unset Design Parameters. 100-fold real array used to

convey data between component as defined inCatalogue and physical item as incorporated into thedesign.





The Piping Elements


7-53


Legal Owners: BRAN

Legal Members: None

The Piping Elements


Version 11.3

7-54

Vent Element (VENT) Piping Component

Description: Component for vents.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseShop falseSpref Nulref Specification Reference.Lstube Nulref Leave tube specification.Arrive 1 P-arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been positioned.Ispec Nulref Insulation specification.Tspec Nulref Trace heating specification.

Desparam unset Design Parameters. 100-fold real array used to conveydata between component as defined in Catalogue andphysical item as incorporated into the design.





Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-55

Four-Way Valve Element (VFWAY) Piping Component

Description: Component for all classes of four-way valve.

Attributes:Name /nameLock falseOwner /namePosition E 0mm N 0mm U 0mmOrient Y is N and Z is UBuilt falseShop falseSpref Nulref Specification Reference.Lstube Nulref Leave tube specification.Arrive 1 P-arrive.Leave 2 P-leave.Posflag false Shows if element has been positioned.Oriflag false Shows if element has been positioned.Ispec Nulref Insulation specification.Tspec Nulref Trace heating specification.

Desparam unset Design Parameters. 100-fold real array used to conveydata between component as defined in Catalogue andphysical item as incorporated into the design.

Crfa unset Connection reference array.Angle 90Radius 0mmHeight 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-56


Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-57

Three-Way Valve Element (VTWAY) Piping Component

Description: Component for all classes of three-way valve.



Cref unset Connection reference.Angle 90Radius 0mmHeight 0mmSpln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-58

Legal Owners: BRAN

Legal Members: None

The Piping Elements


7-59

Weld Element (WELD) Piping Component

Description: Component for itemised welds.



Angle 0Height 0mmAllowance 0mm Field-fit weld allowance for use by ISODRAFT.Loffline false Logical offline flag.Spln unset Spool number for component, for use by ISODRAFT.Splt unset Spool number for component’s leave tube, for use by




The Piping Elements


Version 11.3

7-60

Wldn 0 Weld number in ISODRAFT.Wldp unset Weld prefix in ISODRAFT.

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Legal Members: None

PDMS DESIGN Reference Manual Index-1Part 3: Elements and AttributesVersion 11.3

Index

Attachment Point element, 7-14

Attributes

types, 3-2

user-defined, 3-1

Bend element, 7-16

Blind Flange element, 7-26

Boundary element, 4-9

Box element, 5-10

Branch element, 7-4

Cap element, 7-18

Circular Torus element, 5-15

Clamp element

piping, 7-11

steelwork, 7-12

Closure element, 7-19

CMFI element, 6-26

CMPF element, 6-41

Cofitting element, 6-40

Compound Fitting element, 6-26

Compound Joint

primary, 6-20

secondary, 6-21

Compound Panel Fitting element, 6-41

Cone element, 5-12

Coupling element, 7-20

Cross element, 7-21

Curve element, 6-14

Cylinder element, 5-11

Datum Point element, 4-12

Dish element, 5-14

Drawn Line element, 5-25

Duct element, 7-23

Elbow element, 7-24

Equipment element, 5-2

Equipment Load Point element, 5-44

Extrusion element, 5-19

Filter element, 7-27

Fitting element, 6-24

Fixed Length Tube element, 7-31

FIXI element, 6-29

Fixing element, 6-29

Flange element, 7-29

blind, 7-26

Four-way Valve element, 7-56

Framework element, 6-3

Gasket element, 7-33

Generic Fixing element, 6-29

Generic Section element, 6-10

GENSEC element, 6-10

Ground Model element, 4-8

Group element, 4-6

Group World element, 4-5

Hanger element, 7-9, 7-13

Instrument element, 7-35

Invisible Point element, 5-28

JLDATUM element, 6-15

Joints

primary, 6-6

secondary, 6-18

Justification Line Datum element, 6-15

Lap-Joint Stub-End element, 7-37

Linear Joints

Index


Version 11.3

Index-2

panel, 6-36

section, 6-37

Load Case Descriptor element, 6-43

Load Point element, 5-44

Loop element, 5-21, 5-42

Negative Box element, 5-31

Negative Circular Torus element, 5-36

Negative Cone element, 5-33

Negative Cylinder element, 5-32

Negative Dish element, 5-35

Negative Extrusion element, 5-40

Negative Pyramid element, 5-39

Negative Rectangular Torus element, 5-37

Negative Slope-bottom Cylinderelement, 5-38

Negative Snout element, 5-34

Negative Solid of Revolution element, 5-41

Nodal Displacement element, 6-46

Nodal Load element, 6-45

Nodal Release element, 6-44

Nodes

primary, 6-5

secondary, 6-17

Nozzle element, 5-8

Olet element, 7-39

Panel Cofitting element, 6-40

Panel element, 6-32

Panel Fitting element, 6-39

Panel Linear Joint element, 6-36

Panel Loop element, 6-34

Panel Vertex element, 6-35

PCOJ element, 6-20

Penalty Volume element, 4-11

Pipe Clamp element, 7-11

Pipe element, 7-2

Pipe Hanger element, 7-9

Pipe Track element, 5-5

Piping Component element

general, 7-41

PLDATUM element, 6-16

Pline Datum element, 6-16

POINSP element, 6-13

Point element, 5-27

Polygon element, 5-24

Polyhedron element, 5-23

Primary Compound Joint element, 6-20

Primary Joint element, 6-6

Primary Node element, 6-5

Pyramid element, 5-17

Rectangular Torus element, 5-16

Reducer element, 7-43

Release element, 6-44

Restraint element, 7-8

Routing Plane element, 4-10, 6-31

Routing Plane Group element, 6-30

SBFI element, 6-28

SCOJ element, 6-21

SCTN element, 6-8

Secondary Compound Joint element, 6-21

Secondary Joint element, 6-18

Secondary Node element, 6-17

Section Distributed Load element, 6-48

Section element, 6-8

Section Linear Joint element, 6-37

Section Point Load element, 6-47

Section Vertex element, 6-38

Site element, 4-3

Slope-bottom Cylinder element, 5-18

Snout element, 5-13

Solid of Revolution element, 5-20

Spine element, 6-12

Spine Point element, 6-13

Index

PDMS DESIGN Reference Manual Index-3Part 3: Elements and AttributesVersion 11.3-

Standard Hook-up element, 7-44

Steel Clamp element, 7-12

Structural Section element, 6-8

Structure element

equipment etc., 5-4

steelwork, 6-2

Subequipment element, 5-3

Subfitting element, 6-28

Subframework element, 6-4

Subjoint element, 6-22

Substructure element

equipment etc., 5-6

Tangent Point element, 5-29

Tee element, 7-46

Text element, 4-7

Three-way Valve element, 7-58

Torus element

circular, 5-15

rectangular, 5-16

Trap element, 7-48

Union element, 7-50

Userdefined attributes, 3-1

Valve element, 7-52

four-way, 7-56

three-way, 7-58

Vent element, 7-54

Vertex element, 5-22, 5-43

Weld element, 7-60

World element, 4-2

Zone element, 4-4

Documents

23187647-Pdms-Design