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A beam has dimensions of b = 14 in., h = 26 in., and d = 23.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 3,400 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 5.233927 in., determine the strain in the reinforcement.

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 4,300 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the depth to the neutral axis, c.

Flexural stiffness is inversely related to span length. Therefore, a higher percentage of the load applied to floor panels is carried in the short span direction as compared to the long span direction.

Cantilever beams loaded with only gravity loads develop tension cracks along the bottom of the beam.

A beam has dimensions of b = 18 in., h = 12 in., and d = 9.5 in. and is reinforced with 4 No. 11 bars. The concrete strength is 5,000 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 6.118 in., does the reinforcement yield?

Cantilever beams loaded with only gravity loads require longitudinal reinforcement along the bottom of the beam.

Simply supported beams loaded with only gravity loads develop tension cracks along the top of the beam.

A beam has dimensions of b = 18 in., h = 12 in., and d = 9.5 in. and is reinforced with 5 No. 8 bars. The concrete strength is 3,500 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 5.207 in., does the reinforcement yield?

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 4 No. 8 bars on the tension side. The concrete strength is 3,400 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 4.812 in., determine the strain in the compression reinforcement, ε’s.

A concrete floor system with a ratio of the longer to the shorter span length that is less than 2 is usually considered a one-way system.