Q: Consider the preceding problem if the beam has width b = 75
Consider the preceding problem if the beam has width b = 75 mm, the aluminum strips have thickness t = 3 mm, the plastic segments have heights d = 40 mm and 3d = 120 mm, and the total height of the be...
See AnswerQ: A simple beam that is 18 ft long supports a uniform load
A simple beam that is 18 ft long supports a uniform load of intensity q. The beam is constructed of two angle sections, each L 6 × 4 × 1/2, on either side of a 2 in. Ã...
See AnswerQ: The cross section of a composite beam made of aluminum and steel
The cross section of a composite beam made of aluminum and steel is shown in the figure. The moduli of elasticity are EAl = 75 GPa and Es = 200 GPa. (a) Under the action of a bending moment that produ...
See AnswerQ: Two W 310 × 74 steel wide-flange beams are bolted
Two W 310 × 74 steel wide-flange beams are bolted together to form a built-up beam as shown in the figure. What is the maximum permissible bolt spacing s if the shear force V = 80 kN and...
See AnswerQ: A beam is constructed of two angle sections, each L 5
A beam is constructed of two angle sections, each L 5 × 3 × 1/2, that reinforce a 2 × 8 (actual dimensions) wood plank (see the cross section shown in the figure...
See AnswerQ: The cross section of a bimetallic strip is shown in the figure
The cross section of a bimetallic strip is shown in the figure. Assuming that the moduli of elasticity for metals A and B are EA = 168 GPa and EB = 90 GPa, respectively, determine the smaller of the t...
See AnswerQ: A W 12 × 50 steel wide-flange beam and a
A W 12 × 50 steel wide-flange beam and a segment of a 4-inch thick concrete slab (see figure) jointly resist a positive bending moment of 95 kip-ft. The beam and slab are joined by shear...
See AnswerQ: A reinforced concrete beam (see figure) is acted on by
A reinforced concrete beam (see figure) is acted on by a positive bending moment of M = 160 kN m? Steel reinforcement consists of 4Â bars of 28 mm diameter. The modulus of elasticity for th...
See AnswerQ: A reinforced concrete T-beam (see figure) is acted
A reinforced concrete T-beam (see figure) is acted on by a positive bending moment of M = 175 kip-ft. Steel reinforcement consists of four bars of 1.41-inch diameter. The modulus of elasticity for the...
See AnswerQ: A reinforced concrete slab (see figure) is reinforced with 13
A reinforced concrete slab (see figure) is reinforced with 13-mm bars spaced 160 mm apart at d = 105 mm from the top of the slab. The modulus of elasticity for the concrete is Ec = 25 GPa, while that...
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