त्रा] W21 x 55 24 ft

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Now consider the same beam when a 60-inch-long rod is added at mid-span. The rod's cross section area is 0.50 in². Find the axial stress in the rod, draw the shear and moment diagrams for the beam, and find the maximum stress in the beam. (Intermediate Result: Axial Force in Rod= 24,240 pounds.) 72 in B 200 lb/in ↓↓↓ 72 in с

6 Assuming that the wind force reverses in direction, the maximum service load based on a combined mechanism with a plastic hinge at E. 1.4P P. Lengths: AB = 6.3m F BE = 3.9m M, EF = 1.8m 1.3M, FC = 4.5m %3D 1.5M, CD 5.1m %3D Assume Fw = 0.8P Section BC W30x90

The capacity of the fixed-fixed beam 3-4 needed to be increased. It was decided that this can be achieved by attaching three truss members (1-2, 1-3 and 1-4, all of the same cross section) to the beqm, as shown in the sketch below. The width of the beam is b, its height h=3b, its length 2L=20h. The load on the beam is q=const. What should the minimum cross-section area of the truss members be for the transverse displacement of the beam at point 2 to be no larger than half of the original beam's displacement (i.e. without the truss members). Assume that the material of the beam and of the truss members is the same. 3 4 2 L/2 1

STRENGTH OF MATERIALS

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1 A 19 ft long, simply supported beam is subjected to a 5 kip/ft uniform distributed load over its length and 11 kip point load at its center. If the beam is made of a W14x30, what is the deflection at the center of the beam in inches? The quiz uses Esteel = 29,000,000 psi. Ignore self-weight.

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For the beam shown below: Draw the free body diagram (P9) showing the reactions for each type of supports knowing that the support on the left is a roller and on the right is a pin (P10) 500 Ib 500 lb 250 Ib Fntint -3 ft- -3 ft-3 ft-