Civil Engineering - Steel Structure Design - Discussion

31. 

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.

Answer: Option B

Explanation:

No answer description available for this question.

Garry said: (Jan 19, 2018)  
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.

Meenal said: (Mar 14, 2019)  
Then what is the correct answer can anybody explain, please?

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