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Adjacent span loading is the common loading pattern for dete…

Adjacent span loading is the common loading pattern for determining maximum shear at the supports between the loaded spans due to dead load.

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A concrete floor system with a ratio of the longer to the sh…

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

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A beam has dimensions of b = 14 in., h = 30 in., d’ = 2.5 in…

A beam has dimensions of b = 14 in., h = 30 in., d’ = 2.5 in., and d = 27.5 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 2,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 5.68 in., determine the force in the compression reinforcement, Cs.

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A beam has dimensions of b = 20 in., h = 10 in., and d = 7.5…

A beam has dimensions of b = 20 in., h = 10 in., and d = 7.5 in. and is reinforced with 4 No. 7 bars. The concrete strength is 4,700 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 2.211 in., does the reinforcement yield?

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For the initial analysis-design cycle, total beam depths are…

For the initial analysis-design cycle, total beam depths are typically in the range of L/18 to L/12, where L is the center-to-center span length of the beam.

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A beam has dimensions of b = 14 in., h = 26 in., d’ = 2.5 in…

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 2,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 7.179 in., determine the strain in the compression reinforcement, ε’s.

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Simply supported beams loaded with only gravity loads develo…

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

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A beam is singly reinforced with the reinforcement in two ro…

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 9 No. 5 bars at a depth of 14 in. The top row contains 6 No. 8 bars at a depth of 8 in. Determine the effective (centroidal) depth, d, of the steel.

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Generally, slab thickness is based on deflection limits, and…

Generally, slab thickness is based on deflection limits, and then the design is checked for shear and flexure.

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Cantilever beams loaded with only gravity loads require long…

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

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