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A beam has dimensions of b = 14 in., h = 30 in., and d = 27.5 in. and is reinforced with 5 No. 5 bars. The concrete strength is 6,100 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.

The use of a layer of closely spaced bars will prevent splitting failures along the plane of the reinforcement.

A beam has dimensions of b = 16 in., h = 22 in., and d = 19.5 in. and is reinforced with 2 No. 5 bars. The concrete strength is 10,000 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

A beam has dimensions of b = 14 in., h = 28 in., and d = 25.5 in. and is reinforced with 2 No. 8 bars. The concrete strength is 5,200 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 1.939237 in., determine the strain in the reinforcement.

In a one-way slab, the slab strips used for analysis span the long direction of the panel.

A beam has dimensions of b = 16 in., h = 22 in., and d = 19.5 in. and is reinforced with 3 No. 8 bars. The concrete strength is 4,900 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

A compression-controlled section has a tension-reinforcement area such that when the beam reaches its nominal flexural strength, the net tensile strain in the extreme layer of tensile steel is greater than or equal to 0.005.

The strength-reduction factor is multiplied by the factored design moment to account for possible variations in dimensions and material strengths and possible inaccuracies in the strength equations.

A beam has dimensions of b = 14 in., h = 26 in., d’ = 2.5 in., and d = 23.5 in. It is reinforced with 2 No. 5 bars on the compression side and 5 No. 8 bars on the tension side. The concrete strength is 3,700 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 5.588 in., determine the force in the compression reinforcement, Cs.

A classmate has suggested a beam design that has dimensions of b = 16 in., h = 24 in., and d = 21.5 in. and is reinforced with 4 No. 14 bars. Assuming a cover of 1.5 in. and a stirrup diameter of 0.5 in., does the reinforcement fit within a single row as suggested?