A steel column carries an axial load of 801 kN and a moment of 71 kN-m at the top and moment at the bottom which is only70% of the moment at the top. The two moments are in opposite direction and applied about the x-axis and the steel section has the following properties: A = 13159 mm2 ry = 109 mm ry = 94 mm Sx = 1200 x 103 mm3 K= 1.0 L= 3.6 m E= 200,000 Mpa Fy = 248 Mpa Use NSCP specification for compressive stress and Fb =148 Mpa. Determine the Allowable Compressive Stress. Note: the answer should close 133 MPA

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A steel column carries an axial load of 801 kN and a moment of 71 kN-m at the top and moment at the bottom which is only70% of the moment at the
top. The two moments are in opposite direction and applied about the x-axis and the steel section has the following properties:
A = 13159 mm2
ry = 109 mm
ry = 94 mm
Sx = 1200 x 103 mm3
K= 1.0
L= 3.6 m
E= 200,000 Mpa
Fy = 248 Mpa
Use NSCP specification for compressive stress and Fb =148 Mpa.
Determine the Allowable Compressive Stress.

Note: the answer should close 133 MPA

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