In the following problem, the given loads are superimposed service loads; that is, they do not include the weights of the beams (unless noted otherwise). For structural steel beams (unless otherwise noted), assume a yield stress of 50 ksi (345 MPa). For timber beams, all beams are solid, rectangular shapes and Appendices E and F are applicable. Consider only moment and shear (unless otherwise noted).
Select the lightest W shape to support a concentrated load of 100 kN placed at midspan. The beam is on a simple span of 10 m. Deflection is not to exceed span/240. Neglect beam weight.
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