BW Purlins 2012

making steelwork

INDUSTRIES

Purlins

TECHNOLOGY

SureBUILDTECHNOLOGY

SureBUILDTECHNOLOGY

TECHNOLOGY

TECHNOLOGY

2BW Purlins TEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.ukTEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.uk

Introduction .................................................................................................... 3

Building Details ......................................................................................... 6

Purlins and Rails – Z Section ...................................................... 8

Purlins and Rails – Cee Section .......................................... 10

Eaves Beams – E Section ......................................................... 12

Purlin Systems ...................................................................................... 13

Sleeved System ........................................................................ 14

Butt System .................................................................................. 15

Lapped System ......................................................................... 16

Heavy End Bay System .................................................... 17

Roof Variations ..................................................................................... 18

BW Cleats & Alternative Cleats ........................................... 20

Ancillary Items & Accessories ............................................... 21

Eaves Beam to Purlin Tie ........................................................... 25

Side Rail Systems ............................................................................. 26

Sleeved System ........................................................................ 27

Butt System .................................................................................. 28

Horizontal Cladding ......................................................................... 29

Side Rail Restraining Systems .............................................. 30

BW Diagonal Ties .............................................................................. 31

Door and Window Trimmer Cleats .................................. 32

Fire Restraint Wall System ........................................................ 33

Material Weights ................................................................................. 34

Detail Sheets and Load Tables ............................................. 35

Fire Restraint Wall System Contents

About TECHNOLOGY

SureBUILDTECHNOLOGY

SureBUILDTECHNOLOGY

TECHNOLOGY

TECHNOLOGY

technologyThe material is steel, the technology is Surebuild. Lightweight, load bearing framework for all applications – industrial, commercial, modular and domestic. The Surebuild name reflects the ongoing product development, independent testing and analysis, manufacturing speed and accuracy, and overall cost effectiveness.

Surebuild – solutions in steel

TECHNOLOGY

SureBUILDTECHNOLOGY

SureBUILDTECHNOLOGY

TECHNOLOGY

TECHNOLOGY

Surebuild is a registered Trademark of BW Industries Ltd.

TEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.uk 3 BW PurlinsTEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.uk TEL 01262 400088 • EMAIL [email protected] • WEB www.bw-industries.co.uk

Fire Restraint Wall System Introduction

The CompanyBW Industries is a privately owned company providing steel components for the construction, manufacturing and agricultural sectors.

BW Industries are suppliers to the domestic market and also export to other countries worldwide.

As a reflection of our clear commitment we have gained a leading position in the steel sections industry by our insistence, without compromise, that all components are of high quality and are accurately manufactured whilst remaining cost competitive.

Since its establishment in 1974 BW Industries are proud to have an excellent reputation in the construction, manufacturing and agricultural sectors established through continued commitment and an unrivalled service level.

QualityBW Industries has a Quality Assurance System which is accredited to BS EN ISO 9001-2008 and which covers all aspects of our operations.

BW Industries excellent personal service backed up by commitment to quality ensures that BW Industries achieve the highest levels of customer satisfaction.

ProductsThe wide range of products supplied by BW Industries may be split into the following areas:-

Purlins, Sheeting Rails and ■■

Eaves Beams

Mezzanine Floors■■

Structural Walls and Framing■■

Surebuild Structural Framing■■

Offsite Modular Buildings■■

Cold Formed Framed Buildings■■

Grainwalling■■

Laser Punching and Notching■■

This brochure relates specifically to Purlins and Sheeting Rails.

BW Industries Purlin division carries out design and manufacture of light gauge pre-galvanised steel purlins and sheeting rails.

The systems are available in Zed or Cee section profile and are manufactured from pre-galvanised steel coil with a guaranteed yield strength of 450 N/mm.

Standard section depths range from 141mm to 341mm with thicknesses from 1.3mm to 3mm. All systems have a full range of accessories.

In addition to the standard range of sizes BW Industries also offers a range of bespoke sections which can be manufactured to an individual client’s requirements.

Section depths range from 50mm to 500mm with thicknesses from 0.5mm to 6mm.

Some bespoke sections are manufactured from lower yield strength materials.

BW Industries can roll sections up to 18m in length.


Fire Restraint Wall System Introduction contd

DesignBW Industries have developed software for the design of cold formed purlins, sheeting rails and mezzanine floor beams. This is provided as an aid to designers and specifiers to allow selection of the optimum section.

The software has been developed following extensive testing of sections by and under the approval of the SCI (Steel Construction Institute), this was undertaken to accurately determine bending capacities.

The software is for designs in accordance with BS EN 1993 this being the relevant european design standard.

The software has been developed by a chartered structural engineer and has been independently checked and verified by the SCI.

Fully comprehensive technical support is available from our design team.

All of the steelwork is 100% recyclable, all steel is currently manufactured using 40% recycled steel.

DetailingBW Industries produce standard detailing sheets which allow detailers to order standard sections and components. The information on these sheets is used to generate a CAM data file which is then fed directly into the manufacturing system.

Standard details are available on a number of electronic draughting packages such as Strucad and Autocad.

BW Industries also have facilities to produce detail drawings as required for any project.

Non standard sections and non standard hole sizes and or punchings can be accommodated on request.

SustainabilityBW Industries are committed to supporting and developing sustainability throughout all its departments.

Steel is one of the most recycled materials used in the world, use of recycled material does not compromise the quality of new steel produced from it.

By addressing key issues such as product design, CO2 emissions, recycling of waste materials and prudent use of all resources BW Industries take responsibility for managing environmental issues.

CostingFollowing selection of the optimum sections BW Industries provide competitive quotations for manufacture, supply and delivery.

BW Industries are pleased to offer this service for bespoke sections and for their large range of standard sections.


Fire Restraint Wall System Introduction contd

OrderingIn order to facilitate the ordering process BW Industries have a range of standard drawings and details which can be completed by the client. These are then used to prepare an acknowledgement which itemizes precisely what is required.

Alternatively BW Industries have in house draughting facilities to allow preparation of fabrication drawings and details.

ManufactureThe information on any fabrication drawings and details is programmed into a Cam data file which is transmitted directly to the rolling or fabrication plant.

Ancillary items are produced in conjunction with the manufacture of major components.

All major components are normally ink jet printed to show what they are and from which materials they have been formed. This process is so that there is a trail which shows exactly what has been manufactured.

Dispatch and SupplyBW Industries have a team of experienced personnel who hand pick the items for dispatch and load these onto the vehicles which have been arranged for onward transportation. Depending on the end users requirements specialist vehicles with on board lifting equipment can be arranged to facilitate material off-loading at the delivery address.

CertificationBW Industries have developed design software based on the methodology in the relevant European standards and extensive testing of their product range.

This information has been independently assessed and approved by the SCI who are an internationally recognized authority in the field of light gauge steelwork design and construction.

BW Industries are pleased to display the SCI logo and to confirm that their products have achieved SCI Assessed status with the appropriate certification.

Photograph of Zed Purlin undergoing load testing in the John Payne Building Laboratory at Oxford Brookes University as witnessed and documented by the SCI (Steel Construction Institute)


Fire Restraint Wall System BW Apex Ties

Fire Restraint Wall System BW Rafter Stays

Fire Restraint Wall System BW Snaptite Anti-sag Tie BW Zed Section BW Diagonal Ties

Fire Restraint Wall System Building Details

page 23

page 21

page 22

page 8 page 31


BW Cleat Details

BW Eaves BeamsFire Restraint Wall System BW Purlin Assembly Details

Fire Restraint Wall System BW Side Rail Supports

page 30

page 13page 12

page 20


Fire Restraint Wall System Purlins and Rails – Z Section

Fire Restraint Wall System

Range Gauges mm

Z121 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

Z141 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

Z151 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

Z171 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

Z201 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

Z231 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

Z261 1.6 , 1.8 , 2.0 , 2.3 , 2.5 , 2.9

Z301 2.0 , 2.3 , 2.5 , 2.9

Z341 2.3 , 2.5 , 2.7 , 3.0

Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Top Holemm

Bottom Holemm

Z121 121 56 17 51 19 44 42

Z141 141 56 17 51 19 44 42

Z151 151 56 17 51 19 44 42

Z171 171 67 17 62 19 44 42

Z201 201 67 17 62 19 44 42

Z231 231 78 17 71 19 44 42

Z261 261 82 17 74 19 44 42

Z301 301 92 19 84 21 44 42

Z341 341 102 21 94 23 44 42

All holes are 14mm diameter unless stated otherwise. All holes are punched in pairs on standard gauge lines.

Designed in accordance with BS EN 1993-1-3 ■■

Manufactured by cold roll forming of pre-hot dipped ■■

galvanized strip to BS EN 10346 with minimum tensile strength of 450 N/mm2 and Z275 coating

Section ranges are referenced “Z” followed by three ■■

digits being the overall depth in mm

Individual sections are referenced “Z” followed by five ■■

digits the first three being the overall depth in mm and the final two being the gross material thickness in mm multiplied by 10

Sleeve references are the same as the purlin references. ■■

Product information required when ordering purlin section size purlin overall length

Top Lip

Bottom Lip

Depth

Top Hole

Bottom Hole

Top Flange

Bottom Flange

Use the BW Building Wizard Software for accurate calculations

making steelwork

INDUSTRIES

A NEW INNOVATION FROM BW INDUSTRIES

Building Wizard Software©BW Industries 2011 v1.7.1.1

TECHNOLOGY

The software package facilitates cost effective design of purlins, side rails and mezzanine floor beams all in accordance with current standards. An integral database allows for quick and accurate assessment of loadings including wind load and snow load for all locations in the United Kingdom and Ireland. This all in one application enables production of detailed reports for submission to any checking authority. See our website or contact our sales team to request the latest version.

Gauge


Fire Restraint Wall System

SectionReference

Weightkg/m

Second Moment of Area Section Modulus Radius of Gyration MomentCapacity

Major Axiscm4

Minor Axiscm4

Major Axiscm3

Minor Axiscm3

Major Axiscm

Minor Axiscm

Major AxiskNm

Z12113 2.59 74.01 23.05 12.07 4.24 4.81 2.68 5.03

Z12114 2.78 79.39 24.66 12.94 4.54 4.80 2.67 5.72

Z12115 2.97 84.70 26.23 13.81 4.83 4.79 2.67 6.40

Z12116 3.16 89.93 27.78 14.66 5.12 4.78 2.66 7.08

Z12118 3.53 100.20 30.77 16.34 5.68 4.77 2.64 8.40

Z12120 3.89 110.18 33.64 17.97 6.22 4.75 2.62 9.68

Z14113 2.79 105.74 23.12 14.81 4.24 5.53 2.59 6.17

Z14114 3.00 113.48 24.73 15.90 4.54 5.52 2.58 7.02

Z14115 3.20 121.13 26.32 16.97 4.84 5.51 2.57 7.87

Z14116 3.41 128.69 27.87 18.03 5.13 5.51 2.56 8.70

Z14118 3.81 143.52 30.89 20.11 5.70 5.49 2.55 10.33

Z14120 4.21 157.99 33.79 22.13 6.24 5.47 2.53 11.93

Z15113 2.89 124.17 23.14 16.25 4.25 5.89 2.54 6.77

Z15114 3.11 133.29 24.76 17.45 4.55 5.88 2.53 7.71

Z15115 3.32 142.31 26.35 18.63 4.84 5.87 2.53 8.63

Z15116 3.53 151.22 27.91 19.79 5.13 5.86 2.52 9.55

Z15118 3.95 168.72 30.94 22.08 5.70 5.84 2.50 11.35

Z15120 4.36 185.81 33.85 24.32 6.25 5.83 2.49 13.11

Z17113 3.32 186.23 37.64 21.56 5.75 6.73 3.03 7.54

Z17114 3.57 200.06 40.33 23.16 6.16 6.72 3.02 8.79

Z17115 3.82 213.74 42.97 24.75 6.57 6.71 3.01 10.04

Z17116 4.06 227.29 45.57 26.31 6.97 6.70 3.00 11.27

Z17118 4.54 253.96 50.64 29.40 7.76 6.69 2.99 13.69

Z17120 5.02 280.09 55.54 32.43 8.52 6.67 2.97 16.07

Z17123 5.73 318.27 62.59 36.85 9.63 6.65 2.95 19.55

Z17125 6.20 343.04 67.09 39.71 10.33 6.63 2.93 21.81

Z20114 3.90 292.20 40.43 28.81 6.17 7.77 2.89 10.94

Z20115 4.17 312.31 43.09 30.79 6.58 7.76 2.88 12.49

Z20116 4.44 332.25 45.70 32.76 6.98 7.76 2.88 14.03

Z20118 4.97 371.56 50.81 36.63 7.78 7.74 2.86 17.06

Z20120 5.50 410.14 55.75 40.44 8.55 7.72 2.85 20.04

Z20123 6.28 466.64 62.86 46.01 9.66 7.69 2.82 24.41

Z20125 6.79 503.41 67.41 49.63 10.37 7.68 2.81 27.25

Z23115 4.76 472.25 63.17 40.37 8.30 8.94 3.27 14.03

Z23116 5.06 502.66 67.06 42.97 8.82 8.93 3.26 16.07

Z23118 5.67 562.75 74.68 48.10 9.84 8.91 3.25 20.09

Z23120 6.28 621.87 82.09 53.16 10.83 8.89 3.23 24.05

Z23123 7.18 708.72 92.81 60.58 12.27 8.87 3.21 29.87

Z23125 7.77 765.42 99.70 65.43 13.19 8.85 3.19 33.68

Z26116 5.53 689.05 75.94 52.07 9.51 10.01 3.32 18.45

Z26118 6.20 771.92 84.63 58.34 10.61 9.99 3.31 23.35

Z26120 6.86 853.56 93.09 64.51 11.68 9.97 3.29 28.17

Z26123 7.85 973.74 105.36 73.59 13.25 9.94 3.27 35.29

Z26125 8.50 1052.34 113.26 79.53 14.26 9.92 3.26 39.94

Z26129 9.78 1205.94 128.40 91.13 16.21 9.89 3.23 49.04

Z30120 7.87 1299.79 134.69 85.32 15.02 11.49 3.70 33.92

Z30123 9.00 1484.83 152.78 97.47 17.06 11.46 3.68 43.42

Z30125 9.75 1606.17 164.48 105.43 18.39 11.45 3.66 49.65

Z30129 11.24 1844.04 187.04 121.05 20.96 11.41 3.63 61.87

Z34123 10.16 2149.05 212.63 124.69 21.36 12.99 4.08 51.30

Z34125 11.01 2326.33 229.18 134.98 23.04 12.97 4.07 59.34

Z34127 11.86 2501.54 245.38 145.14 24.70 12.95 4.06 67.29

Z34130 13.12 2760.50 269.04 160.16 27.12 12.92 4.03 79.05



Fire Restraint Wall System Purlins and Rails – Cee Section

Range Gauges mm

C121 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

C141 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

C151 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0

C171 1.3 , 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

C201 1.4 , 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

C231 1.5 , 1.6 , 1.8 , 2.0 , 2.3 , 2.5

C261 1.6 , 1.8 , 2.0 , 2.3 , 2.5 , 2.9

C301 2.0 , 2.3 , 2.5 , 2.9

C341 2.3 , 2.5 , 2.7 , 3.0

Range Depthmm

Flangemm

Lipmm

Holemm

C121 121 54 17 43

C141 141 54 17 43

C151 151 54 17 43

C171 171 66 17 43

C201 201 66 17 43

C231 231 75 17 43

C261 261 79 17 43

C301 301 89 19 43

C341 341 99 21 43


Designed in accordance with BS EN 1993-1-3■■

Manufactured by cold roll forming of pre-hot dipped ■■

galvanized strip to BS EN 10346 with minimum tensile strength of 450 N/mm2 and Z275 coating

Section ranges are referenced “C” followed by three ■■

digits being the overall depth in mm

Individual sections are referenced “C” followed by five ■■

digits the first three being the overall depth in mm and the final two being the gross material thickness in mm multiplied by 10

Sleeve references are the same as the purlin references.■■



Depth

Lip

Lip

Gauge

Flange

Hole

Hole

making steelwork

INDUSTRIES



TECHNOLOGY




SectionReference

Weightkg/m


Major Axiscm4

Minor Axiscm4

Major Axiscm3

Minor Axiscm3

Major Axiscm

Minor Axiscm

Major AxiskNm

C12113 2.58 74.01 13.36 12.23 3.72 4.82 2.05 5.25

C12114 2.77 79.39 14.30 13.12 3.98 4.81 2.04 5.95

C12115 2.96 84.70 15.22 14.00 4.24 4.80 2.03 6.64

C12116 3.14 89.94 16.12 14.87 4.49 4.79 2.03 7.32

C12118 3.51 100.20 17.87 16.56 4.98 4.78 2.02 8.66

C12120 3.88 110.18 19.56 18.21 5.45 4.76 2.01 9.96

C14113 2.78 105.67 14.08 14.99 3.79 5.54 2.02 6.43

C14114 2.99 113.41 15.08 16.09 4.06 5.53 2.02 7.29

C14115 3.19 121.05 16.05 17.17 4.32 5.52 2.01 8.14

C14116 3.39 128.60 17.01 18.24 4.58 5.51 2.01 8.98

C14118 3.80 143.42 18.87 20.34 5.08 5.50 1.99 10.63

C14120 4.19 157.87 20.66 22.39 5.57 5.48 1.98 12.24

C15113 2.88 124.06 14.41 16.43 3.82 5.90 2.01 7.05

C15114 3.10 133.17 15.43 17.64 4.09 5.89 2.00 7.99

C15115 3.31 142.18 16.42 18.83 4.36 5.88 2.00 8.93

C15116 3.52 151.08 17.40 20.01 4.62 5.87 1.99 9.85

C15118 3.94 168.56 19.31 22.33 5.12 5.85 1.98 11.67

C15120 4.35 185.63 21.15 24.59 5.61 5.84 1.97 13.44

C17113 3.33 187.81 24.25 21.97 5.23 6.75 2.42 7.81

C17114 3.58 201.75 25.99 23.60 5.61 6.74 2.42 9.09

C17115 3.83 215.56 27.71 25.21 5.98 6.73 2.41 10.36

C17116 4.07 229.22 29.40 26.81 6.34 6.72 2.41 11.61

C17118 4.56 256.13 32.70 29.96 7.06 6.71 2.40 14.08

C17120 5.04 282.49 35.90 33.04 7.75 6.69 2.38 16.51

C17123 5.75 321.00 40.52 37.54 8.75 6.66 2.37 20.05

C17125 6.22 346.00 43.47 40.47 9.39 6.65 2.36 22.35

C20114 3.91 294.41 27.36 29.29 5.71 7.79 2.38 11.29

C20115 4.18 314.69 29.17 31.31 6.09 7.78 2.37 12.86

C20116 4.45 334.77 30.96 33.31 6.46 7.77 2.36 14.43

C20118 4.98 374.39 34.45 37.25 7.19 7.76 2.35 17.51

C20120 5.51 413.27 37.84 41.12 7.90 7.74 2.34 20.54

C20123 6.29 470.23 42.73 46.79 8.93 7.71 2.32 24.98

C20125 6.81 507.29 45.87 50.48 9.59 7.69 2.31 27.88

C23115 4.75 471.52 41.54 40.82 7.53 8.94 2.65 14.84

C23116 5.05 501.88 44.12 43.45 7.99 8.93 2.65 16.89

C23118 5.66 561.86 49.17 48.65 8.91 8.92 2.64 20.96

C23120 6.26 620.87 54.09 53.75 9.80 8.90 2.63 24.96

C23123 7.16 707.56 61.22 61.26 11.10 8.87 2.61 30.83

C23125 7.75 764.15 65.81 66.16 11.94 8.85 2.60 34.67

C26116 5.53 690.54 51.97 52.92 8.78 10.02 2.75 19.53

C26118 6.20 773.59 57.96 59.28 9.80 10.00 2.74 24.50

C26120 6.86 855.41 63.80 65.55 10.79 9.98 2.73 29.40

C26123 7.85 975.84 72.28 74.78 12.23 9.95 2.71 36.62

C26125 8.50 1054.61 77.76 80.81 13.16 9.93 2.70 41.34

C26129 9.78 1208.52 88.29 92.61 14.95 9.90 2.68 50.58

C30120 7.80 1288.47 89.43 85.61 13.25 11.49 3.03 35.04

C30123 8.93 1471.76 101.51 97.79 15.04 11.46 3.01 44.56

C30125 9.75 1609.07 113.51 106.92 16.96 11.46 3.04 51.35

C30129 11.24 1847.36 129.25 122.75 19.32 11.42 3.02 63.74

C34123 10.16 2152.39 147.22 126.24 19.69 13.00 3.40 53.23

C34125 11.01 2329.94 158.77 136.65 21.24 12.98 3.39 61.36

C34127 11.86 2505.42 170.10 146.95 22.76 12.96 3.38 69.40

C34130 13.12 2764.77 186.66 162.16 24.98 12.93 3.36 81.29


Fire Restraint Wall System Eaves Beams – E Section

Range Gauges mm

E195 2.0, 2.4, 3.0

E235 2.0, 2.4, 3.0

E300 2.0, 2.4, 3.0

E360 2.0, 2.4, 3.0

Range Depthmm

Flangemm

Lipmm

Web Flatmm

Holesmm

E195 195 90 20 105 65

E235 235 90 20 145 105

E300 300 90 20 210 170

E360 360 90 20 270 230

Designed in accordance with BS EN 1993-1-3■■

Manufactured by cold roll forming of pre-hot ■■

dipped galvanized strip to BS EN 10346 with minimum tensile strength of 450 N/mm2 and Z275 coating

Section ranges are referenced “E” followed by ■■

three digits being the overall depth in mm

Individual sections are referenced “E” followed ■■

by five digits the first three being the overall depth in mm and the final two being the gross material thickness in mm multiplied by 10

Depth

65

60

Flange

Angle of Top Flange from 0 to 20 degrees

Gauge

Lip

Lip

All holes are 14mm diameter unless stated otherwise.

SectionReference

Weightkg/m


Major Axiscm4

Minor Axiscm4

Major Axiscm3

Minor Axiscm3

Major Axiscm

Minor Axiscm

Major AxiskNm

19520 6.26 478.52 84.57 49.08 13.69 7.81 3.28 19.89

19524 7.46 567.16 99.63 58.17 16.14 7.78 3.26 27.06

19530 9.21 694.53 120.88 71.23 19.58 7.73 3.22 37.38

23520 6.89 736.90 89.97 62.71 14.02 9.24 3.23 25.42

23524 8.21 874.75 106.07 74.45 16.53 9.21 3.21 34.64

23530 10.15 1073.74 128.84 91.38 20.08 9.16 3.17 47.95

30020 7.91 1307.16 97.00 87.14 14.40 11.49 3.13 35.32

30024 9.44 1554.59 114.45 103.64 17.00 11.45 3.11 48.22

30030 11.68 1913.67 139.20 127.58 20.70 11.40 3.07 66.94

36020 8.85 2019.15 102.10 112.18 14.67 13.50 3.04 45.47

36024 10.57 2404.43 120.54 133.58 17.33 13.46 3.01 62.15

36030 13.09 2965.60 146.74 164.76 21.11 13.40 2.98 86.45


making steelwork

INDUSTRIES



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Fire Restraint Wall System Purlin Systems

Sleeved PAGE 14

Lap PAGE 16

Butt PAGE 15

Heavy End Bay PAGE 17

BW Industries produce four types of Purlin Systems, Sleeved, Butt, Lap and Heavy End Bay – these are detailed over the next four pages


Fire Restraint Wall System Sleeved System

Purlins Sleeved System

Holes for purlin ties at mid-span or one third and two thirds span points. Holes for purlin ties are 18mm diameter.

Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Hole Ctrs.

mm

Lengthmm

Z121 121 51 19 56 17 220 574

Z141 141 51 19 56 17 240 614

Z151 151 51 19 56 17 265 664

Z171 171 62 19 67 17 290 714

Z201 201 62 19 67 17 350 834

Z231 231 71 19 78 17 410 954

Z261 261 74 19 82 17 460 1054

Z301 301 84 21 92 19 600 1334

Z341 341 94 23 102 21 750 1634

BW ‘Z’ Section Sleeves

BW ‘Z’ Section Standard Hole Details

The sleeved purlin system is suitable for buildings with two or more bays and utilises single span length purlins with sleeves. The sleeves are formed from the same section as the purlins but are installed inverted.

The sleeves, which achieve a high degree of continuity over the purlin supports are fitted at all penultimate rafter connections and staggered on all internal bays, allow economy of purlin section selection.

The system can be used for single span purlins and for double span purlins.

■


number of sleevesAll holes are 14mm diameter unless stated otherwise. All holes are punched in pairs on standard gauge lines.



Purlins Butt System

Holes for purlin ties at mid-span or one third and two thirds span points. Length of purlin is span less 6mm. Holes for purlin ties are 18mm diameter.

Holes for purlin ties at mid-span or one third and two thirds span points. Length of left hand span plus length of right hand span less 6mm. Holes for purlin ties are 18mm diameter.

BW “Z” Section Standard Hole Details Non-continuous

BW “Z” Section Standard Hole Details Double Spanning Butt-jointed

Fire Restraint Wall System Butt System

The butted purlin system is suitable for all building types but is primarily used in single span applications.

It is the simplest purlin system and can be used in inset and oversail configurations.

Non standard end configurations can be accommodated as required.

■


number of sleeves

All holes are 14mm diameter unless stated otherwise. All holes are punched in pairs on standard gauge lines.Use the

BW Building Wizard Software for accurate calculations

making steelwork

INDUSTRIES



TECHNOLOGY



■


Fire Restraint Wall System Lap System

Purlins Lap System

The lap system is a further variation of the sleeved system which is suitable for buildings with five or more bays. Extended single span purlins are alternatively inverted and overlapped with each other.

The lapped section has the benefit of achieving a high degree of continuity over the purlin supports thus allowing economic section selection.

The avoidance of sleeves means that there are fewer system components and additionally reduced site erection time.

Penultimate Bay Purlin

End Bay Purlin Inner Bay Purlin

Range Centres End Centres

Z121 420 630

Z141 460 690

Z151 470 705

Z171 500 750

Z201 560 840

Z231 640 960

Z261 740 1110

Z301 860 1290

Z341 1020 1530

The lapped system is only suitable for Zed purlin sections


Hole centres to end bay purlins are “End Centres” as shown in the table below.

Hole centres to left hand end of penultimate bay purlins are “End Centres” , holes to right hand end of penultimate bay purlins are “Centres” as shown in the table below.

Hole centres to inner bay purlins are “Centres” as shown in the table below


■

Product information required when ordering purlin centre span hole centres

number of sleeves■


BW ‘Z’ Section Standard Hole Details

Fire Restraint Wall System Heavy End Bay System

Purlins Heavy End Bay System

The heavy end bay system is a variation of the sleeved system which is suitable for buildings with five or more bays.

Heavier gauge sections are fitted to the end bays with corresponding heavy gauge sleeves to all penultimate rafter connections.

Inner bay purlins are of lighter gauge as are the inner bay sleeves which are fitted at every connection.

The system can be used with double span inner bay purlins with fewer inner sleeves.


Range Depthmm

Top Flange

mm

Top Lipmm

Bottom Flange

mm

Bottom Lipmm

Hole Ctrs.

mm

Lengthmm

Z121 121 51 19 56 17 270 674

Z141 141 51 19 56 17 290 714

Z151 151 51 19 56 17 315 764

Z171 171 62 19 67 17 340 814

Z201 201 62 19 67 17 400 934

Z231 231 71 19 78 17 460 1054

Z261 261 74 19 82 17 510 1154

Z301 301 84 21 92 19 650 1434

Z341 341 94 23 102 21 800 1734

BW ‘Z’ Section Heavy End Bay Sleeves

Holes for purlin ties at mid-span or one third and two thirds span points. Holes for purlin ties are 18mm diameter.


Fire Restraint Wall System Roof Variations

Monopitch Roof

Tiled/Mansard Roof

For monopitch and other roofs where there is no restraint to the ridge purlin via apex ties some equivalent anchor must be used. This may take the form of a simple tie to a substantial ridge beam or alternatively by a combination of struts and diagonal bracing between the top two purlins.

Restraints should be used at mid-span for purlin spans greater than 3.5m and at one third and two thirds of span for purlin spans greater than 7.5m.

For long roof slopes additional diagonal bracing may be required.

These types of roof covering may cause bending about both axes of the roof purlins due to their weight. In order to provide adequate restraint rigid struts should be used in lieu of anti sag ties. The ridge purlins should be tied using a rigid apex strut. Diagonal bracing wires are required between the top two purlins. Additional diagonal bracing will be required for every 6m length of roof slope.

The struts should be arranged such that the maximum unrestrained purlin length is restricted to 2m.

The timber rafters should be joined across the apex or be fixed to a ridge board.



Fire Restraint Wall System Roof Variations contd

Non-restraining Cladding to Roof

Steep Roof

Many modern cladding systems do not provide adequate lateral restraint to the top flange of the purlins. In this situation it is necessary to replace the standard anti-sag ties with angle strut braces.

The struts should be arranged such that the maximum unrestrained purlin length is restricted to 2m.

For roof pitches greater than 25° diagonal bracing should always be provided.

These diagonal wires used in conjunction with angle strut sag bars allow for bending about both axes of the purlin.

Rigid apex ties are also required.

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Fire Restraint Wall System BW Cleats & Alternative Cleats

All holes are 14mm diameter. Finish: galvanised or primer paint

Range Amm

Bmm

Cmm

Dmm

Tmm

Z121 110 25 35 50 6

Z141 130 25 55 50 6

Z151 140 25 65 50 6

Z171 160 25 85 50 6

Z201 190 25 115 50 6

All dimensions in millimetres

Alternative weld on type cleats can be supplied in either Flat Plate Form or Angle (excluding bottom flange holes).

All holes are 14mm diameter. Finish: galvanised or primer paint

Type Amm

Bmm

Cmm

Dmm

Tmm

Z231 220 25 145 50 6

Z261 250 25 175 50 6

Z301 290 25 215 50 8

Z341 330 25 255 50 8


Alternative weld on cleats can be supplied without baseplate.

By others – Dimensions as standard cleats to suit standard gauge lines

BW Cleats – Bolt-on-type BW Cleats – Bolt-on-type with stiffener

Alternative CleatsUse the BW Building Wizard Software for accurate calculations

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6565

130 130

30

30 303070

A

A

B

B

C

C

DD

T T

3530 30


Fire Restraint Wall System Ancillary Items & Accessories

NOTE: When ordering ancillary items, please ensure the correct production details are given for each item. It is our intent to avoid any unnecessary delay or error, which misleading information may cause.

BW ‘Snaptite’ Ties also prevent the purlin from ‘rotating’ during ■■

installation whilst assisting with restraining the bottom flange against wind uplift. The rigidity of the purlin is greatly enhanced once the roof sheeting is installed

BW ‘Snaptite’ Anti-sag Ties should be fitted when a purlin span ■■

is in excess of 4.6m so that the laterally unsupported length does not exceed 3.8m. For Z301 & Z341 Purlins use ‘sheeting rail’ type angle braces (as diagram) above.

It is recommended the above detail is adhered to if wind loadings ■■

are unknown or doubtful.

In some cases Anti-sag Ties are not required. This situation ■■

demands that temporary props/bars are used until the sheeting is fixed, but regardless of wind loading, the absolute maximum spans without permanent ties are: Z141, Z151, Z171, Z201 .......................................... up to 6.1m Z231 ............................................................................ up to 7.1m Z261 ............................................................................. up to 7.6m Z301, Z341 ................................................................. up to 8.1m

Detail of BW Snaptite Anti-sag Tie when fixed

Angle Brace

Anti-sag Tie for 18mm dia purlin holes

BW ‘Snaptite’ Purlin Anti-sag Ties

Product information required when ordering purlin centre dimension only

Roof pitch 4º to 10º Fix ‘Snaptite’ Anti-sag Ties top hole to bottom hole to prevent purlin from rolling forwards

Roof pitch above 10º Fix ‘Snaptite’ Anti-sag Ties bottom hole to top hole to prevent purlin from rolling backwards

Other Criteria For roof pitch below 4º and purlin centres above 2.5m use ‘sheeting rail’ type angle braces. For roof slope in excess of 18m use ‘sheeting rail diagonal tie system’ supports


Product information required when ordering purlin centre dimension top purlin type

bottom purlin type

Product information required when ordering purlin centre span hole centres

Fire Restraint Wall System Ancillary Items & Accessories contd

Roof Ties45 x 45 Angle 2mm Galvanised with 2 No. End Brackets. 14mm dia holes required in purlins to take these ties.

Hole centres required to take these ties

Purlin Ref 141 151 171 201 231 261 301 341

Hole Centres 55 65 85 115 145 175 215 255


The above Roof Ties should be used for pitches below 4º and purlin spacing exceeding 2.5m. These can also be used instead of Eaves Ties.

Where the roof slope is longer than 18m we would recommend the use of the Roof Ties c/w the diagonal tie system within the roof slope.

Apex TiesDiagonal Ties

Product information required when ordering purlin to apex dimension and roof pitch

Apex Ties are used to offer rigid restraint on pitched roofs. Used in conjunction with anti-sag ties to give perpendicular support to the purlins.

Apex Ties connect the two uppermost purlins across the ridge and are usually 12mm screwed rod.

Apex Ties are cranked at centre point. M12 threaded Rod BZP with M12 Nuts & M12 Flat Washers. 14mm diameter holes required in purlins to take these ties.

For use with the above Roof Ties.

5mm diameter Galvanised Wire Rope with 2 No. 40 x 6mm Flat Bar End Brackets.

14mm dia holes required in purlins to take these wires.


Fire Restraint Wall System Ancillary Items & Accessories contd

Product information required when ordering purlin to apex dimension and roof pitch

Detail consists of: L x 45 x 45 x 2 Galv. Steel

Cleader Rail Available in 2 sizes. Both supplied from stock in 6 metre plain unpunched lengths.

Small 45x45mm Angle 2mm Galvanised for use where purlin centres are up to 1.8m

Large 100x100mm Angle 2mm Galvanised for use where purlin centres are over 1.8m

BW Cleader rail is fixed to the end of the purlins to carry vertical cladding. A 6mm gap is recommended for joints in the Cleader Rail. A Jointing Cleat to be used where required – not supplied by BW (Size suggested 70x60x3mm 50mm long) or simply overlap by approx 28mm.

Product information required when ordering size of cleader required

Product information required when ordering hole centre dimension

Rafter/Stanchion Stays


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Fire Restraint Wall System Eaves Beam Cleat & Stiffening Bracket

Eaves Beam Cleat (Bolt On or Weld On)

Eaves Beam Cleat is used for the main stanchion connection to eaves beam.

Eaves Beam Stiffening Bracket

Eaves Beam Stiffening Brackets are bolted inside the Eaves Beam to offer a fixing point for the Eaves Tie Fixing Bracket.

6mm steel plate, pre-galvanised, pre-punched with 4 No. 14mm diameter holes.

Product information required when ordering length eaves beam type

Product information required when ordering eaves beam type

Welding position of Eaves Beam Cleat to Stanchion

Fixing position of Eaves Beam Cleat to Stanchion


Fire Restraint Wall System Eaves Beam to Purlin Tie

Product information required when ordering length eaves beam type

Product information required when ordering eaves beam type

BW Eaves Tie with End BracketsBW Eaves tie with end brackets connects the Eaves Beam to the Bottom Purlin.

Comprising:

45x45x2mm galvanised angle with end brackets factory fitted to preset angle.

Eaves Beam and Bottom Purlin punched at 14mm diameter to accept Eaves Ties.

6mm mild steel hot dip galvanised. Can be fixed to Eaves Beam through web or flange dependant on angle of Eaves Tie.

Product information required when ordering eaves beam type purlin pitch

End Bracket Use the BW Building Wizard Software for accurate calculations

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Fire Restraint Wall System Side Rail Systems

Sleeved PAGE 27 Butt PAGE 28

BW Industries produce three types of Side Rail Systems, Sleeved, Butt and Horizontal– these are detailed over the next three pages

Horizontal PAGE 29


Side Rails Sleeved System

The sleeved side rail system is suitable for buildings with two or more bays and utilizes single span length side rails with sleeves. The sleeves are formed from plain channel section ie without lips.

The sleeves, which achieve a high degree of continuity over the side rail supports are fitted at all penultimate column connections

and staggered on internal bays, allow economy of side rail section selection.

The system can be used for single span side rails and for double span side rails.



Range Depthmm

Flangemm

Gauge mm

Holemm

Hole Ctrs.

mm

Lengthmm

C121 127 54 2.0 46 220 574

C141 147 54 2.0 46 240 614

C151 157 54 2.0 46 265 664

C171 178 66 2.5 46 290 714

C201 208 66 2.5 46 350 834

C231 238 75 2.5 46 410 954

C261 209 79 2.9 47 460 1054

C301 309 89 2.9 47 600 1334

C341 349 99 2.9 47 750 1634

BW ‘Cee’ Section Sleeves

Holes for side rail struts at mid-span or one third and two thirds span points.

BW ‘C’ Section Standard Hole Details

Sleeved System



Fire Restraint Wall System Butt System

Side Rails Butt System

The butted side rail system is suitable for all building types but is primarily used in single span applications.

It is the simplest side rail system and can be used in inset and oversail configurations.

Non-standard end configurations can be accommodated as required.


Length of side rail is span less 6mm.


Length of side rail is span less 6mm.

BW ‘C’ Section Standard Hole Details Non-continuous

BW ‘C’ Section Standard Hole Details Double Spanning Butt-jointed


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Fire Restraint Wall System Horizontal Cladding

Panel Joint Rail

Cleat Details

Panel Joint rails are used to provide support for horizontally spanning cladding systems.

The rails have a large fixing face to accommodate the ends of two panels at joint positions.

Rails are fixed at the top and bottom via cleats which are bolted to the sheeting rails.

Panel joint rails are formed from 1.6mm thick material for rail centres up to 2m for rail centres over 2m use 2mm thick panel joint rails.

Detail for ‘C’ Section Sheeting Rails

Detail for ‘Z’ Section Sheeting Rails Specify Opp. Hand

where required

Panel joint rails can be used in lieu of side rail supports where appropriate. In effect it acts as a strut carrying axial loads either tension or compression.

Sheeting RailWidth, mm

Cleat Widthmm

Long CleatDepth, mm

Short Cleat Depth, mm

141 100 165 110

151 110 165 110

171 130 175 110

201 150 175 110

231 190 185 110

261 220 190 110

301 260 200 110

341 295 210 110

There is an allowance of 10mm clearance above and below panel joint rail between sheeting rails.

15 15

45

105

140


Fire Restraint Wall System Side Rail Restraining Systems

BW ‘Restraint’ or ‘Supporting’ ancillaries are incorporated to deter loading deformation of the side rails and assist in strengthening the overall structure when loaded with the side sheeting. All loading conditions are specifically calculated, only use BW Products illustrated to ensure correct stability under wind pressure and suction loads.

BW Side Rail Supports

Support Cleat Hole Centres Face to Face with Rails. It is recommended that the two lower rails are fixed first and aligned before the remaining rails are installed.

Clamp Plate fitted under the bottom side rail only, to accept the side rail support and tie brackets, if necessary.

For Z141 & Z151 Rails For Z171,Z201, Z231, Z261, Z301, Z341 Rails

Special Fixing to Eaves Beam

BW side rail supports are manufactured from hot dipped galvanised steel (angle section 45x45x2mm)

3mm Galvanised 14mm Diameter Holes

Product information required when ordering rail centres top & bottom rail type

Product information required when ordering rail type

Hole centres in End Brackets

Rail Type Z141 Z151 Z171 Z201 Z231 Z261 Z301 Z341

Centres 55 65 85 115 145 175 215 255


BW Clamp Plate


Fire Restraint Wall System BW Diagonal Ties

Product information required when ordering rail centres top & bottom rail type

Product information required when ordering hole centres (DIM A) rail centres (DIM B)

Detail A

Side rail support struts fitted at a 1/3 points (equidistant) with one diagonal tie for bay from 6.1m–10m max. (in accordance with BS5950).

Detail B

Side rail support struts fitted at a midpoint with two diagonal ties, for bays from 3.2m to 6.1m maximum (In accordance with BS5950).

Detail C

Tie end bracket secured on the underside of the rail support cleat.

For use with side rail supports Ø 5mm Galvanised wire rope, adjustable within a range of 50mm at each end. Diagonal ties should be fitted where required such that the angle is within the range of 25º-65º.

If the angle is less than 25º additional side rail supports are required.

HOLE CENTRES (DIM A)

RAFTER OR STANCHION

ZED CENTRES

(DIM B)

End Bracket


Diagonal Tie Bracket is fitted to underside of Cleat to the hole nearest to the cladding, and sandwiched between the Side Rail and the Side Rail Support.


Product information required when ordering number of cleats

Fire Restraint Wall System Door and Window Trimmer Cleats

Sheeting RailWidth, mm

Cleat Widthmm

Long CleatDepth, mm

Short CleatDepth, mm

BaseWidth, mm

141 100 165 110 89151 110 165 110 89171 130 175 110 101201 150 175 110 101231 190 185 110 110261 220 190 110 114301 260 200 110 124341 295 210 110 134


Cee Section members are ideal for framing doors and windows.

When the sections are arranged so that the web is orientated towards the opening, a flush surface is able to accept fixing of the door and window frames.

The flush surface is achieved by using either flush rivets or counterformed holes and packer plates, in conjunction with standard trimmer cleats which are sized to suit the sheeting rail section being used.

Cleats are either long reach or short reach depending on cee section orientation.

Long reach cleats are required when the web is not orientated towards the opening and for jamb to rail connections.

Short reach cleats are required when the web is orientated towards the opening.

Door and Window Trimming

Door and Window Trimmer Cleats

Window Head

Window Jamb

Window Jamb

Window Sill

Door Head

Door Jamb

Door Jamb


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Product information required when ordering number of cleats

Fire Restraint Wall System Fire Restraint Wall System

In certain applications it is necessary to include fire protection to some or all of the perimeter walls around the building. There are many fire resistant wall cladding systems which are available today.

General Notes

The rail or cleat is slotted longitudinally (14mm x 50mm) on the standard gauge lines. 60mm gap required between ends of rails.

Fixing bolts to all joints must be fitted with a combustible washer, which will collapse under fire conditions, to allow movement for the rail to expand.

The period of resistance is solely dependent on the cladding material used, and the type of construction. A certificate should be obtained from the cladding supplier.

All primary structural steelwork, supporting the rails and cladding, should be fire protected.

Standard Gauge Lines

Type Offset Gauge Lines Hole Centres Length

141 43 55 240 686

151 43 65 265 736

171 43 85 290 786

201 43 115 350 906

231 43 145 410 1026

261 43 175 460 1126

301 43 215 600 1406

341 43 255 750 1706


Fixing system 1 Fixing system 2

‘Butt/Non-Continuous Rail Arrangement’, normally fixed outside the columns, but can also be fitted between the columns. Allow 60mm gap at rail joint for expansion.

‘Sleeved Rail Arrangement’. Alternate sleeve butt/non-continuous connection to column, even number of bays. When odd bays occur, use the special sleeve. Allow 60mm gap at rail joints for expansion.

Special Firewall Sleeves

Inside ColumnsOutside Columns


Fire Restraint Wall System Material Weights

MaterialThickness

mm

Weightkg/m2

Steel Cladding

0.3 3.1

0.4 3.6

0.5 4.8

0.55 5.5

0.6 6.2

0.7 7.1

Aluminium Cladding

0.55 1.9

0.7 2.4

0.9 3.1

1.2 4.1

Steel Liner Panels

0.4 4.0

0.45 4.6

Fibre-Cement Single Skin

Standard three 14.7

Standard six 16.0

Profile 6 17.0

Fibre-Cement Double Skin

Profile 6(including insulation and battens) 30.0

Profile 6(including insulation and battens) 32.0

Panel sheet(including insulation and battens) 27.1

Composite Cladding

28mm Foam 0.55 9.7

46mm Foam 0.55 10.3

28mm Foam 0.7 11.0

46mm Foam 0.7 11.7

Over Purlin Linings

Glass wool 60 0.7

Glass wool 80 0.9

Aeroliner 30 1.6

Aeroliner 50 2.2

Plasterboard 10 8.3

Plasterboard 12 11.2

Fibre board 12 4.4

Fibre insulating board 10 7.9

MaterialThickness

mm

Weightkg/m2

Woodwool Deck

Channel Reinforcement 50 30.0

Channel Reinforcement 75 45.0

Screed

Sand/Cement 25 60.0

Vermiculite 25 12.2

Asphalt

12 26.5

25 55.0

Bitumen Roofing Felts

Mineral Surfaced Bitumen 3.5

3 Layers including Chippings 30.0

Chippings

20.0

Timber Boarding

12 7.1

Chipboard

12 7.1

Plywood

13 9.0

20 14.0

Tile Weights

Plain Tiles (Concrete or Clay) 71.4

Interlocking 56.1

Natural Slate 30.6

Resin 17.3

Blockwork

Concrete , Solid (Stone Aggregates) 25 55.0

Concrete , Hollow 25 34.7

Aerated 25 15.0

Sedum/Green Roof

Decking 24.2

Waterproof Membrane 4.5

Insulation 35.0

Roof Barrier 4.5

Drainage Layer 40.0

Sedum/Green Mat 44.0

Lead

2.5 30.0

The weights shown are for general guidance only and BW Industries accept no responsibility for the accuracy of the information. Where exact weights are required reference should be made to the material manufacturer.


Fire Restraint Wall System Detail Sheets and Load Tables

A full range of Detail Sheets are available to download from our website at www.bw-industries.co.uk

The Purlin Load Tables document is available to download from our website at www.bw-industries.co.uk

The Building Wizard Software is available to download from our website at www.bw-industries.co.uk

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Grainwalling

We reserve the right to alter and amend specifications shown at any time without prior notice. All dimensions are nominal. Care has been taken that the contents of this publication are accurate. However BW Industries Ltd. and its associated companies do not accept responsibility for errors or information found to be misleading and accept no liabilities whatsoever in respect thereof. The contents of this publication are meant as a general introduction to our products and any purchaser, specifier or user retains the entire responsibility for satisfying themselves, independently of anything herein, as to the suitability or fitness for purpose of any BW Industries Ltd. products, services or systems. Our normal terms & conditions of business apply to any order (A copy will be supplied upon request.) © September 2012

BW INDUSTRIESCarnaby Industrial Estate

Carnaby, Bridlington

East Yorks. YO15 3QY

TEL 01262 400088

FAX 01262 401110

EMAIL [email protected]

WEB www.bw-industries.co.uk

Documents

BW Purlins 2012