A 54-kip load is to be supported at the center of the
Chapter 5, Problem 5.92(choose chapter or problem)
A 54-kip load is to be supported at the center of the 16-ft span shown. Knowing that the allowable normal stress for the steel used is 24 ksi, determine (a) the smallest allowable length l of beam CD if the W12 X 50 beam AB is not to be overstressed, (b) the most economical W shape that can be used for beam CD. Neglect the weight of both beams.
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