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Steel Structure Design - Engineering

Q1:

The allowable stress in axial tension for rolled I-sections and channels, is taken as

A 1420 kg/cm2

B 1500 kg/cm2

C 2125 kg/cm2

D 1810 kg/cm2

ANS:B - 1500 kg/cm2

Allowable stress/Permissible stress:

Axial stress in tension and compression = 0.60fy.
Bending stress in tension and compression = 0.66fy.
Maximum Permissible Bearing stress (at supports)or bending stress in column base = 0.75fy,
Maximum Permissible average shear stress = 0.40fy,
Maximum shear stress = 0.45fy.