Zafery
Structural
- Oct 22, 2014
- 11
Sir
I have designed a tower with ASTM 572 Gr 50 Material with ASCE-10-97 (AMERICAN) Code. But now I don't have ASTM 572 Gr 50 material and I need the structures urgently.
Therefore I am proposing to use JIS SS540 material, as the mechanical properties used in design of the proposed material is higher.
ASTM 572 GR 50 Fy = 345 N/mm2 & Fu = 450 N/mm2 While For JIS SS540 Fy = 400 N/mm2 & Fu = 540 N/mm2. However JIS material is having much higher carbon and manganese content therefore its gives much lower elongation and ductility.
Therefore my concern is can we use AISE provisions on JIS materials. Does AISE Provisions rely on the elongation and ductility characteristics of the AISC materials OR since we have a material with higher yield & tensile strength we can use it.
Please advise.
I have designed a tower with ASTM 572 Gr 50 Material with ASCE-10-97 (AMERICAN) Code. But now I don't have ASTM 572 Gr 50 material and I need the structures urgently.
Therefore I am proposing to use JIS SS540 material, as the mechanical properties used in design of the proposed material is higher.
ASTM 572 GR 50 Fy = 345 N/mm2 & Fu = 450 N/mm2 While For JIS SS540 Fy = 400 N/mm2 & Fu = 540 N/mm2. However JIS material is having much higher carbon and manganese content therefore its gives much lower elongation and ductility.
Therefore my concern is can we use AISE provisions on JIS materials. Does AISE Provisions rely on the elongation and ductility characteristics of the AISC materials OR since we have a material with higher yield & tensile strength we can use it.
Please advise.
