Question: A simply supported beam loaded by two forces is shown in the figure. Select a pair of structural steel channels mounted back to back to

A simply supported beam loaded by two forces is shown in the figure. Select a pair of structural steel channels mounted back to back to support the loads in such a way that the deflection at midspan will not exceed ½ in and the maximum stress will not exceed 15 kpsi.

Usesuperposition.

450 lbf 300 lbf 6 ft 4 ft 10 ft 0

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