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Steel Structure Design - Engineering

Q1:

If the unsupported length of a stanchion is 4 metres and least radius of gyration of its cross-section is 5, the slenderness ratio of the stanchion, is

A 60

B 70

C 80

D 90

E 100

ANS:C - 80

Slenderness ratio = L/r.
= 4m/5cm = 400cm/5cm.
= 80cm.