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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.

A beam has dimensions of b = 20 in., h = 10 in., and d = 7.5 in. and is reinforced with 4 No. 9 bars. The concrete strength is 3,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 4.371 in., does the reinforcement yield?

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 7,300 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

Adjacent span loading is the common loading pattern for determining maximum negative moments at supports due to dead load.

Which of the following is not a reason why concrete is reinforced with steel in the compression zone?

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

Assuming Vs exceeds 4sqrt(f’c)bwd, the maximum spacing for vertical stirrups in the following beam is _____. Let b1 = 22 in., b2 = 11 in., d = 57 in., h1 = 6 in., h2 = 48 in., h3 = 8 in., and t = 8 in. There are sixNo. 8 longitudinal tension bars and No. 5 stirrups at 11 in. o.c.