Question

A rectangular beam that must carry a service live load of 2.47 kips/ft and a calculated dead load of 1.05 kips/ft on an 18 ft simple span is limited in cross section for architectural reasons to 10 in. width and 20 in. total depth. If fy=60,000 psi and fc′=4,000 psi, what steel area(s) must be provided.

A rectangular beam that must carry a service live load of 2.47 kips/ft and a calculated dead load of 1.05 kips/ft on an 18 ft

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Answer #1

Given, f = 4 ks; y = 60ksi Wo = 1.05 klet W = 2.47 klet War 1.8 W0 + 1.6W = 1. 2(1.05) + 1.6(2.47) = 5.212 klet L=18 et Max m

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