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Steel Structure Design - Engineering

Q1:

The failure of a web plate takes place by yielding if the ratio of the clear depth to thickness of the web, is less than

A 45

B 55

C 60

D 75

E 82

ANS:E - 82

According to Euler, a column is considered long if it greater than 81. 5 & we know that in long column failure is mainly due to elastic buckling & in short column, failure is mainly due to crushing or yielding. So it must be less 81.5 or 82.