LYSAGHT SPANRIB® (Queensland Only)

LYSAGHT SPANRIB®

LYSAGHT SPANRIB®

Product Description and Features

LYSAGHT SPANRIB® cladding provides the benefits of long spanning, pierced-fix cladding, with excellent rainwater carrying capacity.  It is available in Queensland only.

It has been designed for commercial and industrial applications where long span and fast installation are major requirements.

  • Long lengths and a special anti-capillary groove in the side lap allow use on roof pitches as low as 1 degree for 0.48 mm BMT
  • 820mm wide
  • Can be used for both roofing and walling applications
  • Each sheet only requires three fasteners per support
  • Long lengths allow one sheet from ridge to gutter without end laps

Common Uses of this product

Roofing and walling in industrial and commercial applications

Warnings

  • Available in Queensland only
  • Minimum recommended roof pitch is 1 degree
  • Walk only in pans and close or over the supports
  • Ensure selection of suitable material for environmental conditions for maximum durability
  • Lead and copper are not compatible with ZINCALUME® steel or COLORBOND® steel
  • Read full details on Guidelines for using COLORBOND® steel & ZINCALUME® steel.

Product Details

Schematic

LYSAGHT SPANRIB®

Tolerances

Length: +0mm, -15mm
Cover Width: +4mm, -4mm

Material Specification
  • ZINCALUME® steel made from zinc-aluminium alloy coated steel complying with AS1397-2001, G550 (550MPa minimum yield stress), AZ150 (150g/m2 minimum coating mass)
  • COLORBOND® prepainted steel complying with AS/NZS 2728:Type 4, is made from zinc-aluminium alloy coated steel complying with AS1397-2001, G550 (550MPa minimum yield stress), AZ150 (150g/m2 minimum coating mass) or AZ200 (200g/m2 minimum coating mass), or
  • COLORBOND® prepainted steel complying with AS/NZS 2728:Type 6, is made from stainless steel complying with JIS G 4305, Grade 430 stainless steel, 430SS550. Subject to enquiry, or
  • The base metal thickness is 0.42mm or 0.48mm
Spanning Tables

The maximum recommended support spacings are based on testing in accordance with AS 1562.1 - 1992, AS 4040.0 - 1992 and AS 4040.1 - 1992.

Roof spans consider both resistance to wind pressure and light roof traffic (traffic arising from incidental maintenance).

Wall spans consider resistance to wind and pressure only.

Maximum Recommended Support Spacings (mm)
Type of Span

Thickness (mm) BMT

0.42 0.48

Roofs
Single Span
End Span
Internal Span
Unstiffened Eaves Overhang
Stiffened Eaves Overhang

Walls
Single Span
End Span
Internal Span
Overhang


2100
2300
2800
150
300


1900
3300
3600
150


2500
2550
3050
200
350


2700
3600
3600
200

  • For roofs: the data are based on foot-traffic loading.
  • For walls: the data are based on pressures (see wind pressures table).
  • Table data are based on supports of 1mm BMT.

The pressure considered is based on buildings up to 10m high in Region B, Terrain Category 3, M2=0.85, Mi=1.0, Mt=1.0 with the following assumptions made:

Roofs:
Cpi=+0.20, Cpe=-0.90, Kl=2.0 for single and end spans, Kl=1.5 for internal spans.

Walls:
Cpi=+0.20, Cpe=-0.65, Kl=2.0 for single and end spans, Kl=1.5 for internal spans.

These spacings may vary by serviceability and strength limit states for particular projects.

Capacity & Load Tables

LYSAGHT SPANRIB® offers the full benefits of the latest methods for modelling wind pressures. The wind pressure capacity table is determined by full scale tests conducted at BlueScope Lysaght's NATA Registered Testing Laboratory, using the direct pressure-testing rig.

Testing was conducted in accordance with AS 1562.1 - 1992, Design and Installation of Sheet Roof and Wall Cladding and AS 4040.2 - 1992, Resistance to wind pressures for non-cyclonic regions.**

The pressure capacities for serviceability are based on a deflection limit of (span/120) + (maximum fastener pitch/30).

The pressure capacities for strength have been determined by testing the cladding to failure (ultimate capacity). These pressures are applicable when the cladding is fixed to a minimum of 1.0mm, G550 steel. For material less than 1.0mm thick, Contact Us for advice.

** More information on the relevant Standards can be found at the Standards Australia Website.

SPANRIB®
Limit State Wind Pressure Capacities (kPa)
Base
Metal
Thickness
(mm)

Type of
Span

Limit
State

Span (mm)

900 1200 1500 1800 2100
0.42 Single Serviceability 2.03 1.60 1.33 1.10 0.89
Strength* 6.00 3.30 2.35 1.75 1.35
End Serviceability 1.99 1.85 1.71 1.56 1.40
Strength* 5.00 4.10 3.35 2.75 2.30
Internal Serviceability 1.60 1.80 1.86 1.81 1.67
Strength* 5.45 4.30 3.45 2.95 2.70
0.48 Single Serviceability 2.63 2.23 1.85 1.51 1.21
Strength* 7.35 6.55 5.70 4.95 4.15
End Serviceability 2.95 2.46 2.04 1.73 1.52
Strength* 6.00 5.15 3.95 3.25 2.90
Internal Serviceability 2.20 2.08 1.95 1.82 1.66
Strength* 6.35 5.40 4.45 3.70 3.10

SPANRIB®
Limit State Wind Pressure Capacities (kPa)
Base
Metal
Thickness
(mm)

Type of
Span

Limit
State

Span (mm)

2400 2700 3000 3300 3600 3900
0.42 Single Serviceability 0.70 0.50        
Strength* 1.05 0.75        
End Serviceability 1.24 1.07 0.90 0.73 0.56  
Strength* 1.95 1.65 1.35 1.15 0.95  
Internal Serviceability 1.50 1.32 1.15 0.98 0.82 0.65
Strength* 2.50 2.30 2.15 1.95 1.80 1.60
0.48 Single Serviceability 0.96 0.74 0.54      
Strength* 3.35 2.60 1.85      
End Serviceability 1.35 1.18 1.01 0.84 0.68  
Strength* 2.60 2.40 2.20 2.05 1.95  
Internal Serviceability 1.50 1.34 1.20 1.07 0.95  
Strength* 2.65 2.35 2.20 2.10 2.05  

* A capacity reduction factor of ø = 0.9 has been applied to strength capacities.
Supports must be not less than 1mm BMT.


Cyclonic Map

The information in this brochure is suitable for use only in non-cyclonic conditions. BlueScope Lysaght has extensive cyclonic data to support the use of SPANRIB® in various cyclonic applications.

Please Contact Us for advice when designing for cyclonic conditions.

Fastening Details

For non cyclonic conditions

Fasteners without insulation
Fixing to steel up to
0.75mm BMT
Fixing to steel
0.75 to 3mm BMT
Crest Fixed Self drilling, self tapping screws for wood with hex. washer head shank guard and EPDM seal
12-11 x 65
Self drilling,self tapping screws with hex. washer head with shank guard and EPDM seal
12-11 x 65

LYSAGHT SPANRIB® fastening frequency

Roof Drainage Capacity

Penetrations will alter the flow of water on a roof. For assistance in design of roofs with penetrations please Contact Us.

Maximum roof lengths for drainage measured from ridge to gutter (m)
Peak rainfall intensity mm/hr
Roof slope
1° * 7.5° 10°
100 329 410 480 598 713 820
150 220 273 320 399 476 547
200 165 205 240 299 357 410
250 132 164 192 239 285 328
300 110 137 160 199 238 273
400 82 102 120 150 178 205
500 66 82 96 120 143 164

* for 0.48mm BMT only.

 

 
 
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