Question: A simply supported beam without lateral support is shown in the accompanying figure, The beam has a span of 8 m and is loaded at

A simply supported beam without lateral support is shown in the accompanying figure, The beam has a span of 8 m and is loaded at midspan with a concentrated load of 150 kN . Its section has a built-up doubly symmetrical wide-flange shape. Q345B steel is used. Please check the beam strength. (ignore the self-weight)
(Note: both normal stress and shear stress should be checked)
A simply supported beam without lateral support

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