A beam has dimensions of b = 14 in., h = 24 in., and d = 21.5 in. and is reinforced with 4 No. 6 bars. The concrete strength is 7,300 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 1.21561 in. and the strain in the reinforcement is εs = 0.033346, 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 = 0.60 psi and p2 = 1.40 psi on one side. The box has dimensions L1 = 14 in., L2 = 6 in., and h = 10 in. Use the pressure tributary to the diaphragm (lid) of the box to determine the reaction force V2 between the diaphragm and the shearwall (short side of the box).

A beam has dimensions of b = 16 in., h = 26 in., and d = 23.5 in. and is reinforced with 2 No. 8 bars. The concrete strength is 4,300 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.

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A simply supported beam with dimensions of b = 14 in., h = 28 in., d = 25.5 in., and L = 24 ft supports a uniform service (unfactored) dead load consisting of its own weight plus 1.5 kips/ft and a uniform service (unfactored) live load of 0.8 kips/ft. The concrete is normal-weight concrete. Determine the moment due to the factored loads, Mu.      

A simply supported beam with dimensions of b = 12 in., h = 30 in., d = 27.5 in., and L = 15 ft supports a uniform service (unfactored) dead load consisting of its own weight plus 1.6 kips/ft and a uniform service (unfactored) live load of 1.0 kips/ft. The concrete is normal-weight concrete. Determine the moment due to the factored loads, Mu.      

A beam has dimensions of b = 14 in., h = 22 in., and d = 19.5 in. and is reinforced with 3 No. 8 bars. The concrete strength is 7,600 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 1.572313 in. and the strain in the reinforcement is εs = 0.021928, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

A beam has dimensions of b = 14 in., h = 28 in., and d = 25.5 in. and is reinforced with 5 No. 8 bars. The concrete strength is 9,400 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 2.11872 in. and the strain in the reinforcement is εs = 0.020469, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

Water towers store water above the level of consumers for times of heavy use, eliminating the need for high-speed pumps. How high above a user must the water level be to create a gauge pressure of  3.00 X 10^5 N/m^2 ?

A simply supported beam with dimensions of b = 10 in., h = 22 in., d = 19.5 in., and L = 19 ft supports a uniform service (unfactored) dead load consisting of its own weight plus 1.2 kips/ft and a uniform service (unfactored) live load of 1.5 kips/ft. The concrete is normal-weight concrete. Determine the moment due to the factored loads, Mu.