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General
Material Specification & Design Criteria
Galvanised Steel:
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Space
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Base
Metal
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Zinc
Coating
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All
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Structural
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Type
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Wt,
gm/m2
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ASTM
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A
525
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A446/A
to F
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G60,
G 90
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183,
275
|
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BS
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2989
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Z
25, 28, 32, 55
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L2,
C
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200,
275
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DIN
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17162
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N/A
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200,
275
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200,
275
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NOTES:
* Structural capacity is based on B.S. 5950 Part 6/94.
* Permissible Span Table is constructed for A 446 Grade D
material with Fy=345, E= 205000 N/mm2.
* Span should not exceed (No limit) value.
* Use unfactored (working) combinations of loads to check
permissible span.
* Panel length as per request, (Maximum 12 m).
Aluminium:
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Specifications
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Tensile
Strenghts
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Rp
Yield, 0.2 %
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N/mm2
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N/mm2
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AA
3105 H25
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180<RM<220
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160<RP<200
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AA
3003 H24
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170<RM<205
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NOTES:
* Structural capacity is based on B.S. 8118 Part 1/91.
* Permissible Span Table is constructed for AA 3105, AA 3003
H24, 25, 26 (BS 4300/6 Alloy NS31) with
Fy=170, E= 70000 N/mm2.
* Span should not exceed (No limit) value.
* Use unfactored (working) combinations of loads to check
permissible span.
* Panel length as per request, (Maximum 12 m).
*
All dimensions are nominal
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