Question: Given Young's Modulus: E = 2 9 , 0 0 0 ksi Unbraced Length: L = 2 5 ft Geometric Properties: bf = 1 2

Given Young's Modulus: E =29,000 ksi
Unbraced Length: L =25 ft
Geometric Properties: bf =12 in
tf =0.5 in
tw =0.6 in
d =22 in
h = d -2tf
Assume: Concentrically loaded, straight column, column base is free to rotate.
The beams supporting the crane will be simply connected to the column at the top
and brace the column in the strong and weak axis.
Yield Stress: Fy =36 ksi
Determine: The flexural buckling design strength Pn for one column. Show all work.

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