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A rectangular beam has a cross section of b = 16 in., h = 26 in., and d = 23.5 in. It is reinforced with three No. 7 Grade 60 bars. The concrete strength is 6,700 psi (normal weight). The beam has Grade 60 No. 3 stirrups satisfying ACI 318-14 Sections 9.7.6.2.2 and 9.6.3.3. Determine the strength φMn for this beam.

Force P = 50 N is applied to a lever at the end of a 32-mm-diameter shaft. Force Q = 925 N is applied directly to the shaft. Determine the normal stress σy at point K. Let a = 170 mm and b = 235 mm.

Determine the size modification factor, ψs, for a rectangular beam with b = 18 in. and d = 22 in., four galvanized No. 6 Grade 60 tension-reinforcement bars placed in the bottom of the beam, and No. 3 Grade 60 stirrups located every 8 in. along the span. Assume 4,000-psi lightweight concrete and a clear cover of 1.75 in.

Force P = 45 N is applied to a lever at the end of a 30-mm-diameter shaft. Force Q = 905 N is applied directly to the shaft. Determine the normal stress σy at point K. Let a = 130 mm and b = 235 mm.

Use ACI 318-14 Table 25.4.2.2 to determine the development length for the straight tension bars (no hooks) in a rectangular beam with b = 18 in. and d = 22 in., five galvanized No. 6 Grade 60 bars placed in the top of the beam, and No. 4 Grade 60 stirrups located every 12 in. along the span. Assume 5,000-psi normal-weight concrete and a clear cover of 2 in.

Definition- reattachment of an amputated limb. Pathophysiology- complete excision of a limb due to an accident. Special considerations: – re-implantation ideally should be performed within _________hours of the injury.

Force P = 41 N is applied to a lever at the end of a 31-mm-diameter shaft. Force Q = 830 N is applied directly to the shaft. Determine the magnitude of the shear stress τxy at point H. Let a = 145 mm and b = 200 mm.

Force P = 47 N is applied to a lever at the end of a 30-mm-diameter shaft. Force Q = 965 N is applied directly to the shaft. Determine the normal stress σy at point K. Let a = 160 mm and b = 215 mm.

Determine the size modification factor, ψs, for a rectangular beam with b = 18 in. and d = 20 in., four epoxy-coated No. 6 Grade 60 tension-reinforcement bars placed in the bottom of the beam, and No. 4 Grade 40 stirrups located every 6 in. along the span. Assume 7,000-psi normal-weight concrete and a clear cover of 1.5 in.

Determine the bar-spacing factor, cb, for a simply supported rectangular beam with b = 20 in. and No. 3 stirrups. This beam has four No. 7 bars as longitudinal reinforcement. The clear cover is 1.8 in.