Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Transcribed Image Text:62. A simple span beam with a uniformly distributed dead load of 1.0 k/ft, plus its self-weight, and concentrated dead loads
of 2.5 kips and live loads of 8.0 kips at the quarter points of a 20-ft span, is to be designed with lateral supports at the
supports and mid-span. The live load deflection must be limited to 1/240 of the span. Use the correct Cb and be sure to
check shear. Determine the least-weight W-shape to carry the loads. Use A992 steel. Design by (a) LRFD
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Step 1: Introduce the problem statement
VIEW Step 2: Determine ultimate shear force and bending moment
VIEW Step 3: Deflection of beam due to live load
VIEW Step 4: Determine minimum moment of Inertia
VIEW Step 5: Assume a trial section
VIEW Step 6: Classify the section
VIEW Step 7: Determine Cb
VIEW Step 8: Check the beam for flexure
VIEW Step 9: Check the beam for shear
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