SSC JE Civil Engineering 25-Sep-2019 Shift 1 Solved Paper

Question : 166 of 200

Marks: +1, -0

A steel rod of 20 mm diameter is used as a tie member in a 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?
(Assume slenderness ratio = 350)

2000 mm
1750 mm
2500 mm
3000 mm

Validate

Solution:

As we know that,

λ=KL/r\;\;\;\;(∵K = 1)

∵

r=D/4=20/4=5

mm given (

∵ λ

= 350 )
So, The maximum permissible length (L)
=

λ×r = 350 × 5 = 1750

mm.

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