ETABS 2013 Levels and Features Physical Modeling Features Plus Nonlinear UltimateModel joint size limit Unlimited Unlimited UnlimitedAll drafting and model generation features3D line and area objectsDatabase of all standard hot rolled steel, aluminum, and cold formed sectionsSection Designer for specialized sectionsWall Stack for shear walls of complex shapesInteractive database spreadsheet editingAnalytical Modeling Features Plus Nonlinear UltimateMeshing tools      Automatic mesh generator      Automatic edge constraint technology for mismatched meshes2D and 3D frame elementShell elementNonlinear layered shell elementMoment curvature curve and PMM interaction surface for arbitrary fiber sectionsLinear link element with stiffness and dampingAutomated panel zone elementNonlinear link elements: gaps, hooksNonlinear link elements - plasticity, dampers, isolatorsNonlinear frame hinge elementLoading Features Plus Nonlinear UltimatePoint, line, trapezoidal, and area loadsTributary area load distribution to framesAutomatic code-based wind loadingOpen structure wind loading (multiple codes)Automatic code-based seismic loadingPattern loadingApplied displacement loadingGravity, pressure and thermal loadingAnalysis Features Plus Nonlinear UltimateFast advanced solver technology with SAPFireTM analysis engineMultiple 64-bit solvers for analysis optimization with unmatched solution capacityDiaphragm and rigid-body constraintsEigen analysis with auto-shifting for ill-conditioned problemsRitz analysis for fast predominant mode evaluation with missing massMultiple response spectrum cases in single runModal combination by the CQC, SRSS, GMC or double sum methodsDirectional combination by the ABS, SRSS, or CQC3 methodsLinear dynamic modal time history analysisLinear dynamic direct integration time history analysisBuckling analysisNonlinear analysis      Tension/compression-only frame elements      Tension/compression only soil (area)      P-delta analysis - both small and large P-delta      Static pushover analysis      Wilson FNA (Fast Nonlinear Analysis) method      Direct integration time history      Line and surface multi-linear springs (P-y curves)      Material nonlinearity - frame hinges and links      Geometric nonlinearity - large displacement      Staged construction      Creep and shrinkage      Property modifiers for frames and shells can be changed      Section properties for frames and shells can be changedStatic and dynamic load combos - linear, envelope, absolute, SRSS, rangeDesign Features Plus Nonlinear UltimateSteel frame design - American and international design codesConcrete frame design - American and international design codesComposite beam design - American and international design codesSteel joist design - American and international design codesConcrete shear-wall design - American and international design codesSteel connection design - American codeFooting design - American codeLoad combinations can be converted to nonlinear load cases for designOutput and Display Features Plus Nonlinear Ultimate

Deformed and undeformed geometry in 3DLoading diagramsMoment, shear and axial force diagramsStress contours for area and solid objectsResultant forces displayed along section cutsDetailed results with right button clickVirtual work plotsTime history displays of function vs. timeForce vs. deformation plotsResponse spectrum curves from time history responseVideo of animations and time varying results displaysCapture of graphics to .emf, .jpg, .bmp, .tifCustomized report generation      Quick generation of built-in reports      Custom reports      Cover sheet identifying client, project, user and company      Formatted tables of model definition, analysis and design results      Graphical displays of the modelDetailing - steel framingDetailing - concrete shear wallImport & Export Formats Plus Nonlinear UltimateOpen API, compatible between ETABS/SAP2000Microsoft Excel and Access exportText file import/exportRevit import/export using CSiXRevitAutoCAD (.dxf/.dwg)CIS/2 - STEPSteel detailing neutral file (SDNF)IGESIFCOther analysis software text files (Import only)

ETABS 2013 System Requirements Processor:

Minimum: Intel Pentium 4 or AMD Athlon 64 Recommended: Intel Core 2 Duo, AMD Athlon 64 X2, or better A CPU that has SSE2 support is required The SAPFire® Analytical Engine includes a multi-threaded solver that can take advantage of multi-core CPUs

Operating System: Microsoft® Windows XP with Service Pack 2 or later, Microsoft® Windows Vista, or Microsoft® Windows 7, 32- and 64-bit versions With a 64 bit operating system, the SAPFire® Analytical Engine can utilize more than 4 GB of RAM, making it possible to more

efficiently solve larger problems

Memory: Minimum: 2 GB for XP O/S, 4 GB for Vista/Windows 7 O/S Recommended: 4 GB for 32-bit O/S, 8 GB or more for 64-bit O/S The problem size that can be solved & the solution speed increases considerably with more RAM Vista/Windows 7 requires more RAM than XP for the operating system itself

Disk Space: 6 GB to install the program. Recommended: 500GB or larger Hard Disk Drive (7200 rpm SATA) Additional space required for running and storing model files and analysis results, dependent upon the size of the models

Video Card: Minimum: Supporting 1024 by 768 resolution and 16 bits colors for standard (GDI+) graphics mode Recommended: Discrete video card with NVIDIA GPU or equivalent and dedicated graphics RAM (512 Mb or larger) for DirectX

graphics mode. The card must be DirectX 9.0c compatible (DirectX SDK Aug 2009 - Build 9.27.1734.0). DirectX graphics mode fully utilizes the hardware acceleration provided by a GPU and dedicated graphics RAM.

For better graphics quality in terms of anti-aliasing and line thickness, the device raster drawing capabilities should support legacy depth bias.

ETABS 2013 Modeling Tools

Modeling Templates

Selection of templates for quickly starting a new model Model definition of:

o Grid and grid spacingo Storieso Default structural system sectionso Default slab and drop panel sections

o Uniform loads (Dead and Live)

Grid Systems

Grid systems include: o Cartesiano Cylindricalo General grids

Direct free-form drawing of grid lines.

Every grid system can have its unique origin and rotation.

Intelligent Snaps

Set multiple snap increments Intelligent detection of:

o Intersectionso Extensionso Parallelso Perpendiculars

Drawing helper tools to show physical extrusions even when in analytical draw mode.

Automated 3D, Plan and Elevation Views

Plan and elevation views automatically generated at every grid line. Arrow buttons allow for quick navigation thru model, grid line by grid line

Transparent plane shown in 3D view of which plan or elevation you are currently working in

Developed Elevations

Elevations along gridlines Developed elevations along strips

Editing and assignments in elevation view

Architectural Tracing

Import an architectural DXF/DWG into the background Layer colors imported Trace the drawing to generate ETABS 2012 structural objects Right button click to convert tracing line to ETABS 2012 structural object

Drafting snaps work directly on imported background

Interactive Table Database Editing

All ETABS 2012 data can be viewed and edited using on-screen dockable tables Bi-directional direct link to MS Excel for editing

Allows users to define a portion of the model, or even the entire model using spreadsheets

Meshing Tools

Automatic mesh generation o Many different meshing control optionso Will always create quadrilateral sub elements 

User has full control of how mesh gets generated Reshaper tool can be used to reshape and control mesh geometry Mesh by gridlines, mesh by selected lines, by intersecting objects or by selected

joints. Area surface loads can be distributed as one-way or two-way. Object based model automatically converts into an element based model for

internal analysis. Frames, areas, and/or solids can have refined meshes for analysis, but then the model is reformulated to report results as if these elements were singular unmeshed objects.

Meshed area and solid finite elements can automatically add joints to adjacent frame elements for internal analysis.

Automatic Line Contraints

Automatic Edge Constraint technology for mismatched meshes

Analytically connects all mismatched meshes using joint interpolation algorithms

ETABS 2013 Loading

Automatic Code Based Seismic Loading

ETABS will automatically generate seismic loads based on various domestic and international codes including but not limited to:

o UBC 94; 97o BOCA 96o NBCC 95o 2005 IBC 2003; 2006o Chinese 2002o ISI1893 2002o NEHRP 97o User coefficient

o User loads

Special Seismic Load Effects

ETABS can automatically calculate the Rho factor, which is a reliability factor based on system redundancy

ETABS calculates the Rho factor in accordance with Section 1617 of the 2000 International Building Code

The Rho factor is only calculated when there is lateral load present in the model.

Display loading values

Color contoured area loading diagrams

Automatic Code Based Wind Loading

Automatic permutation of wind directions and eccentricities ETABS will automatically generate wind loads based on various domestic and

international codes including but not limited to: o UBC 94; 97o BOCA 96o ASCE 7-95; -02; -05o NBCC 2005o Mexicano Chinese 2002o IS875 1987o User defined

Open Structure Wind Loading

Load Cases and Combinations

Unlimited number of load cases and combinations Automated design combinations based on selected design code Strength and service combinations User-defined load combinations

Linear add, envelope, absolute add, SRSS, and range combinations

Area, Line, Point and Thermal Loads

Uniform or non-uniform surface loads (surface loads can be assigned in any direction, not just gravity)

Point loads can be assigned in any direction, including skewed angles Uniform or trapezoidal loads on lines in any direction Thermal load can be assigned to joints, lines and/or areas

Imposed joint support displacement

Cladding

Automatically add analytical cladding to entire structure for loading purposes

Automatic Live Load Reduction

Live load reduction options: o Tributary Areao Influence Areao User parameterso Chineseo User defined by stories supported

o Option to apply reduction factors to axial load only or all forces/components

ETABS 2013 Analysis

General Analysis Details

Solvers that have been tried and tested by the industry for over 35 years. Advanced SAPFire Analysis Engine Multiple 64-Bit Solvers for analysis optimization Eigen Analysis

o Autoshifting for ill-conditioned problems

Ritz Analysis

Object Based Meshing

Automated based on maximum element size Meshes parallel and perpendicular to longest edge, grid system, or area local axes Aims to maintains good element aspect ratios

Edge constraint connects mismatched slab meshes

Dynamic Analysis

Modal frequency analysis using Ritz or Eigen vectors Floor vibration analysis

Response spectrum loads and modes imported from ETABS®

Response Spectrum Analysis

Response-spectrum analysis is a statistical type of analysis for the determination of the likely response of a structure to seismic loading. 

Response-spectrum analysis seeks the likely maximum response to these equations rather than the full time history. 

The earthquake ground acceleration in each direction is given as a digitized response- spectrum curve of pseudo-spectral acceleration response versus period of the structure.

Time History Analysis

Two methods of Time History Analysis: o Modal Time History

Uses the method of mode superposition Nonlinear

o Direct Integration Time History Solves equations for the entire structure at each time step Linear Nonlinear

Time History Functions Functions

o Sineo Cosineo Rampo Sawtootho Triangularo User defined

Nonlinear direct-integration time-history analysis cases can be chained together with other nonlinear time-history or static cases (including staged construction), to address a wide range of applications. 

P-Delta Analysis (large and small)

The P-Delta effect refers specifically to the nonlinear geometric effect of a large tensile or compressive direct stress upon transverse bending and shear behavior. A compressive stress tends to make a structural member more flexible intransverse bending and shear, whereas a tensile stress tends to stiffen the member against transverse deformation.

 

Tension and Compression only Frames

Frame elements may be assigned compression limits for modeling braces and stay cables, or tension limits for modeling masonry or special physical devices. 

In the example, the base plate is modeled with both tension and compression springs.

o An elastic analysis allows springs to take both tension and compression.

o A nonlinear analysis allows springs to take tension only or compression only.

Buckling Analysis

Linear buckling (bifurcation) modes of a structure can be found under any set of loads.

Multiple buckling modes can be found, each giving the mode shape and the buckling factor of safety.

Multiple sets of loads can be considered. Buckling modes can be found for the structure at the end of any staged construction case or any nonlinear static or dynamic analysis.

Nonlinear buckling analysis is also available considering P-delta or large-deflections effects. Snap-through buckling behavior can be captured using static analysis with displacement control.

Dynamic analysis can also be used for modeling buckling, including follower-load problems.

Linear and nonlinear buckling analysis can be combined for the greatest flexibility in understanding structural instabilities.

Pushover Analysis

FEMA 273/ATC-40 hinge and fiber hinge option based on stress-strain Nonlinear layered shell element enables users to consider plastic behavior of

concrete shear walls, slabs, steel plates and other area finite elements in the pushover analysis.

Force-Deformation relations for steel and concrete hinges Modal, uniform, or user defined lateral load patterns Capacity spectrum conversions Effective damping calculation Demand spectrum comparisons Performance point calculation

Summary reports including plastic hinge deformations

Construction Sequencing

Incremental Construction Sequence Modeling and Loadings Structures can be analyzed for the effects of staged construction, including

changing support conditions, section properties, and the adding and removing of temporary shoring.

Nonlinear effects can be considered such as large deflections, yielding, and gap opening and closing.

Time-dependent creep, shrinkage, and strength-change effects can be included. Arbitrary loading sequences may be applied. Tendons can be jacked in multiple stages, and cables automatically tightened to

target tensions. Multiple construction sequences may be analyzed in the same model and compared or enveloped.

Dynamic, buckling, and other types of analyses can be performed at the end of any construction sequence, so that the behavior of a structure can be examined before and after a retrofit.

A Gantt-chart scheduler is available for easy definition of staged-construction load cases.

 

Concrete Shrinkage and Time Dependent Creep Analysis

 

Long term deflections due to creep and shrinkage can be computed along with staged sequential construction analysis.

Time dependent material properties based upon the 1990 edition CEB-FIP code and user defined curves are used to compute creep strains.

 

Model Alive

For small to medium sized structures, analysis can be performed on-the fly as you build and modify the model.

For each change you make to the geometry, properties, or loading, the structure instantly responds with the new deformed shape, moment diagram, or any other plot of results. It’s like working with a live model, and it is a very powerful tool for conceptual design and for testing "what-if" scenarios.

ETABS 2013 User Interface

Simple, and Powerful User Interface

ETABS 2012 offers a single user interface to perform: o Modelingo Analysiso Designo Detailingo Reporting

Model Explorer for quick access to objects, properties and forms.

No limit to the number of model windows and views.

Model Explorer

Define, duplicate, and modify properties Drag and drop assignment to model

Display and set default displays Save and recover user-defined displays

Review detailing views and drawings

Print and export drawings and views

Analytical Model Views

View and manipulate analytical model with great precision. Plans and Elevation views automatically generated at every grid line. Define custom views and cutting planes to view and manpiulate complex

geometry with ease.

 

Physical Model Views

Quickly toggle between analytical model and physical model views Smooth shading Clear display of wall junctions

Allows review of insertion points, local axes rotations, and geometry

Direct X Graphics Support

Direct X graphics for hardware-accelerated graphics support  Fast model manipulation of very large models

 

ETABS 2013 Output and Display

Deformed Geometry

3D perspective graphical displays Static deformed and mode shapes animation of deformed shapes   

Users can display deformed geometry based on any load, or combination of loads.

Section Cuts

Graphical section cut definitions for forces and stresses The resultant (free-body) forces and moments across any cut in the structure can be defined using section cuts. A section cut can have any shape, and can be used to compute story shears, connecting forces, design forces in shear walls, and for many other purposes.

Section cut results can be obtained for all types of load cases and combinations. 

Moment, Shear and Axial Force Diagrams

Force diagrams and stress contours Story vertical loads, shears and overturning moments Selective results displayed on-screen with right-button click

Tabular display of model input & output

Video Animations

ETABS has the ability to generate video (.avi) files to visually display a set of analysis results that vary over a particular time period, such as in a time history analysis. Output plot functions include:

o Base functionso Energy functionso Frame functionso Generalized Displacement functionso Joint functionso Link functionso Load functionso Section Cut functionso Shell functions

 

Shell Force and Stress Contours

Shell Forces and Stress Contours

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Reaction Diagrams

Display selected reaction components Display as arrows Display as tables that can be user-positioned

Results for load combinations and cases

Tabular Output

Tables for all input data, analysis results, and design results Filter, sort, and query table data Customize column data format Hide unnecessary columns

Print or save tabular data to Access, Excel, Word, HTML, or TXT

Rendered Views

Smooth rotation of model Multiple lighting options Texture options for concrete, rebar, tendons and other materials

Shadows

Rebar Cages

Realistic rebar texture Based on detailer rebar layout

Visual simulation of actual rebar cages

ETABS 2013 Design Steel Frame Design

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Learn more Concrete Frame Design

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Learn more Shear Wall Design

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Learn more Composite Beam Design

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Learn more Steel Joist Design

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Learn more Steel Connection and Base Plate Design

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Learn more Concrete Footing Design

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Learn more ETABS 2013 Concrete Frame Design

Overview

ACI, UBC, British, Canadian, New Zealand, Italian, Indian, Mexican and Euro Codes Design for static and dynamic loads Grouping for design envelopes Automatic or user defined loading combinations and design groups Automatic calculations of live load reduction factors Design for biaxial-moment/axial-load interaction & shear Automatic calculation of moment magnification factors Magnification override option with the evaluation of P-delta effects Integrated section designer for complex concrete sections Interactive options for design and review Design for effects of rorsion

Virtual work based optimization for lateral deflection control

Supported Codes

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ETABS 2013 Shear Wall Design

Overview

Calculates reinforcing requirements for overturning & shear American, Canadian, British and Indian codes Reinforcing requirements for 2D planar walls Reinforcing requirements for 3D elevator core with openings Reinforcing requirements for curved shear walls Reinforcing requirements for spandrels & link beams Design includes torsional effects User controlled interactive design and review Accurate capture of shear lag Automatic Integration of forces for piers and spandrels 2D wall pier design 2D wall spandrel design

3D wall pier check for provided reinforcement

Wall Designer

Wall Designer Details

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ETABS 2013 Concrete Footing Design

Overview

Recognizes similar nature of typical floors Standard (K) or Envelope (KCS) design types Total load and live load design parameters Orthogonal and skewed deck systems Automatic member sizing – No preliminary design required Code dependent or user defined loading combinations Automatic calculations of live load reduction factors Virtual work based on automatic drift control for steel frames Grouping of members for member sizing AISC-ASD & LRFD, UBC, British, Canadian, Italian, Indian and Euro Codes for steel frame design Design for static and dynamic loads

Integrated Section Designer for composite & built-up Section

Supported Codes

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ETABS 2013 Steel Frame Design

Overview

Automatic member sizing – No preliminary design required Virtual work based optimization for lateral deflections Grouping of members for member sizing AISC-ASD & LRFD, UBC, British, Canadian, Italian, Indian and Euro Codes Design for static and dynamic loads Code dependent or user defined loading combinations Automatic calculations of live load reduction factors Automatic calculation of K-f\actors and P-delta effects Integrated section designer for composite & built-up sections Interactive options for design and review

Design for Effects of Torsion

Supported Codes

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ETABS 2013 Steel Connection Design

Overview

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ETABS 2013 Composite Beam Design

Overview

Recognizes similar nature of typical floors Orthogonal and skewed deck systems Composite design for transfer girders Design of cantilevers and their backspans Automatic member Sizing – No preliminary design required Optimization for minimum weight or price Camber and stud requirements User specified stud distribution Wet and dry loading combinations Code dependent or user defined loading combinations Automatic calculations of live load reduction factors User controlled deflection criteria Virtual work based automatic drift control for steelfFrames Grouping of members for member sizing American, Canadian, British and Indian codes Design for static and dynamic loads

Integrated section designer for composite & built-up sections 

Supported Codes

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ETABS 2013 Detailing

Detailing Rules

Control bar sizes and spacing Beam and slab curtailment rules Control information displayed in rebar calls Specify bars around openings

Detail all or only bars above a typical quantity

Drawing Title Block

Standard, metric, and ANSI sheet sizes Custom sheet size and margins Engineering, metric, and architectural scales Three predefined title block choices

Import user title block from DXF

Drawing Format & Styles

Control scale of each view on a drawing Modify line type, color, and thickness Modify fill color and transparency Modify font type, size, color, alignment

Modify dimension line styles

Detailed Section Cuts

Cuts through slabs, beams, and mats User-defined orientation and length Instant section preview

Adjustable section cut view range

Reinforcement Editing

Edit rebar size, number, and length Automatic update of associated views Edit strip by strip

Review provided versus required areas

Component Views

Basic building blocks for drawings Framing plans, reinforcement plans, section cuts, rebar tables and schedules, bill of quantities, reinforcement profiles, tendon layout plan, tendon profile elevations

Text and scales can be modified

Reinforcement Plans

Show indicative bars or all bars Customize rebar calls (bar marks)

Reinforcement follows strip directions

Bar Scheduling

Bar Scheduling

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Beam and Column Scheduling

Beam and Column Scheduling

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Drawing Sheets

Typical drawing sheets automatically generated Composed of drawing component views Add views from a list or with drag-and-drop from the Model Explorer

Drawings synchronize with updates to the model and reinforcement

Print and Export Drawings

Print drawings or view directly to a printer or plotter Export drawings and views to DXF or DWG format

Open drawings in AutoCAD or other CAD software

ETABS 2013 Building Components

Section Properties

Concrete Sections o Easy to define standard concrete shapes and rebar layouts

Steel Sections o I/Wide Flange, Channel,  Double Channel, T, Angle, Double Angle, Pipe, Tube, Steel Joist, Built up steel sections

Non-prismatic sections

Built-in industry standard section databases include: o Hot Rolled Steelo Aluminumo Cold formed Steel

Library of standard steel sections: AISC, Canadian, European, British, Chinese, Australian, New Zealand, Indian

Frame Elements

The Frame Element in ETABS 2012 can be either a straight or curved element.

 

Intermediate joints will automatically be generated where other members intersect with frame to ensure finite element connectivity.

Section Designer

Specialized sections Allows users to create any arbitrary shape and any user defined material Automatically calculates all section properties Generates biaxial interaction diagram for concrete sections Moment curvature diagrams

Complete section report generation

Shell Elements

Shell elements (plate, membrane, full-shell) used to model walls, floors, tank/vessel shells and other thin-walled areas, as well as two-dimensional solids (plane-stress, plane-strain, and axisymetric solids)

Layered shell element considers mixed material composite behavior, nonlinear material behavior options for each layer based on stress-strain, with shearing behavior considered for rebar layered shell sections.

Incompatible modes automatically included in the area element stiffness formulation to improve in-plane bending behavior

Thick shell/plate plate option when shear deformations become significant. The thick plate formulation captures both shear and bending deformations, whereas the thin plate formulation is based only on bending deformations and neglects shear deformations.

Wall Stacks

Customizable wall configuration templates help you define your wall section properties with ease. Draw multilevel wall configurations in a single click.

All pier and pandrel labeling is automatically assigned.

Shear Walls

Draw complex 2D and 3D shear walls

Walls can interact with beams and columns

Piers and Spandrels

Pier and spandrel labels produce integrated shears and moments for design purposes, for walls modeled with area finite elements.

For example, an assemblege of 20X20 meshed shear wall areas could have results displayed and reported as if it were a single column.

Windows and Doors

Draw command for windows and door openings in walls

Automatically meshes wall around door/window openings

Link Elements

ETABS 2012 has a many different link elements available for users to accurately represent the behavior of a structure.o Linear o Multi-linear Elastico Multi-linear Plastico Gaps o Hookso Damperso Friction Isolatorso Rubber Isolatorso T/C Isolatorso Frequency-dependent Springs

o Frequency-dependent Dampers

Hinge Properties

Users can create and apply hinge properties to perform pushover analyses in SAP2000.

Nonlinear Fiber Hinges o Nonlinear material behavior in frame elements (beam/column/brace) can be modeled using fiber hinges. This approach represents the material in the cross section as discrete

points, each following the exact stress-strain curves of the material. Mixed materials, like reinforced concrete, and complex shapes can be represented.o Yielding, cracking, and hysteresis are all captured.o Using multiple hinges along the length of an element represents the full 3-D nonlinearity in a member, although for most practical cases this is not needed.

Fiber hinges are utilized in nonlinear static and dynamic analysis.

Rigid, Semi-Rigid and Flexible Floor Diaphragm

Apply diaphragm constraints to all corner points of area object

Diaphragms can be assigned to joints objectsETABS 2013 Import and Export

Import and Export Formats

Export model to MS-access database Export stories to SAFE for foundation analysis/design Cut & paste portions of model to Excel spreadsheet for editing Import/Export model in CIS/2 STEP file format Steel buildings detailed in ProSteel 3D using an import/export link Import/Export project data with Autodesk Revit Structure Export steel models in the Steel Detailing Neutral File format Import/Export data using IFC standards Import files in the following program formats:

o  AutoCADo  FrameWorks Pluso  IGESo  STAAD

o  STRUDL