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University of California Berkeley CEE 122: Design of Steel Structures Department of Civil and Environmental Engineering Fall 2008 Midterm 2: Beams and Beam-Columns 11/18/2008, 502 Davis Hall, 2 hours Name Problem Points Maximum 1 25 2 25 3 25 4 25 total 100 Honor Pledge: I have neither give nor received aid during this examination, nor have I concealed any violation of the Honor Code.

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Problem 1: (25%) Select the lightest available A992 W-section for beam AB in the floor system shown below using AISC LRFD provisions. The conventional reinforced concrete floor slab is 6 inches thick. The self-weight of the beam must be taken into account. The uniform live load is 110 psf. There are no other loads. The maximum allowable deflection is L/240. Assume that the floor slab provides continuous lateral bracing for the beams. A B [email protected]'=32' 38' Problem 2: (25%) Determine the maximum value of service load P that can be carried by this beam using AISC LRFD con- sidering 1) bending; 2) shear strength and 3) deflection limit of L/360. The load P is 25% dead load and
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