A beam has dimensions of b = 14 in., h = 24 in., and d = 21.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 5,200 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 2.908856 in. and the strain in the reinforcement is εs = 0.014517, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

A cardboard box that has been glued to the ground experiences pressures p1 = 0.35 psi and p2 = 1.25 psi on one side. The box has dimensions L1 = 19 in., L2 = 9 in., and h = 14 in. Use the pressure tributary to the diaphragm (lid) of the box to determine the reaction force V1 between the diaphragm and the shearwall (short side of the box).

A beam has dimensions of b = 14 in., h = 26 in., and d = 23.5 in. and is reinforced with 5 No. 8 bars. The concrete strength is 9,700 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 3.158758 in., determine the strain in the reinforcement.

A two-story building has the following characteristics. Determine the seismic design category using ASCE 7-10.Risk Category IIISite Class ESS = 0.75, S1 = 0.30

A beam has dimensions of b = 18 in., h = 30 in., and d = 27.5 in. and is reinforced with 4 No. 5 bars. The concrete strength is 2,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 1.736695 in. and the strain in the reinforcement is εs = 0.037378, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

A simply supported beam with dimensions of b = 16 in., h = 22 in., d = 19.5 in., and L = 15 ft supports a uniform service (unfactored) dead load consisting of its own weight plus 1.3 kips/ft and a uniform service (unfactored) live load of 1.3 kips/ft. The concrete is normal-weight concrete. Determine the moment due to the factored loads, Mu.      

Determine As,min for the following beam given that f’c = 8,250 psi and fy = 60,000 psi.

A two-story building has the following characteristics. Determine the design earthquake spectral response acceleration parameter at short period, SD1, using ASCE 7-10.Risk Category IIISite Class BSS = 0.75, S1 = 0.30

A beam has dimensions of b = 16 in., h = 26 in., and d = 23.5 in. and is reinforced with 5 No. 5 bars. The concrete strength is 8,200 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the tensile force T in the reinforcement.

Determine As,min for the following beam given that f’c = 8,500 psi and fy = 60,000 psi.