Question: Determine the section classification of a hot - finished rectangular hollow section ( RHS ) in S 3 5 5 steel with h = 4

Determine the section classification of a hot-finished rectangular hollow section (RHS) in S355 steel with h =400 mm, b =300 mm and t =10 mm under Axial Compression Only
1.What is the classification of the flanges using hand calculation?
2.What is the classification of the webs using hand calculation?
3.What is the overall classification of the member using hand calculation?

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