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Steel Structure Design - Engineering

Q1:

A long plate girder is subjected to a maximum bending moment M in which permitted allowable bending stress is fb. The economical depth de and the thickness of the web tw, is given by

A

B

C

D

E none of these.

ANS:B -

This formula is based on the assumption that flanges weight has been reduced to 80% of its original value due to curtailment at different sites if 80% is not used factor 1.21 will come.