A simply supported W36 x 182 A36 steel beam has a pin supportat A on the left an

Question

A simply supported W36 x 182 A36 steel beam has a pin supportat A on the left and a roller support B on the right. It islaterally supported at A and B. A service load of 300 kip issupported at the middle which is 10 ft from support A. Usingthe unfactored service load, cumpute (a) Cb include the weight of the beam (b) The nominal flexural strength of this beam A simply supported W36 x 182 A36 steel beam has a pin supportat A on the left and a roller support B on the right. It islaterally supported at A and B. A service load of 300 kip issupported at the middle which is 10 ft from support A. Usingthe unfactored service load, cumpute (a) Cb include the weight of the beam (b) The nominal flexural strength of this beam

Explanation / Answer

Use Eq F1-1 in the AISC manual to solve for Cb. You willneed to calculate the moments at differnt points for this - amoment diagram may be the easiest way. The flexural strength may be found using AISC Eq F2-1, F2-2,or F2-3 depending on what the braced length is (Lb) vs. what Lp andLr are for this beam size.

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