Determine the factor of safety for a 9 foot long hollow steel
column 3.5 inches on a side that has a wall thickness of 0.225
inches and is loaded with a 22 kip load. use the steel e of 29 *10
^6 psi and assume the column is pin connected at each end.

factor of safety for A36 structural steel is 0.82

Explanation:

given data:

side of column = 3.5 inches

wall thickness = 0.225 inches

load P = 22 kip

Length od column = 9 ft

we know that critical stress is given as

where

r is radius of gyration

Here I is moment od inertia

For hollow steel area is given as

critical stress

considering Structural steel A36

so A36

factor of safety  

factor of safety =

factor of safety for A36 structural steel is 0.82

answer:

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