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Question
A steel rod of 20 mm diameter is used as a tie member in the roof bracing system, and may be subjected to possible reversal of stress due to wind load. What is the maximum permissible length of the member?
A.
1750 mm
B.
3000 mm
C.
2500 mm
D.
2000 mm
Answer ( Option A)

1750 mm

Solution

Given - Dia of rod 20 mm. For a tension member subjected to reversed of stress due to action of wind,

maximum slenderness ratio = 350

λ=350

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