A beam has dimensions of b = 14 in., h = 24 in., and d = 21.5 in. and is reinforced with 3 No. 5 bars. The concrete strength is 4,600 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

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

The basic strength requirement from ACI 318 is “Reduced nominal strength ​≥ Factored load effects.”

The elastic beam theory is used in the design of reinforced concrete beams.

You are considering a beam design that has dimensions of b = 14 in., h = 22 in., and d = 19.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 4,300 psi, and the yield strength of the reinforcement is 60,000 psi. What cross-sectional area of reinforcement is needed to achieve a strain in the reinforcement of 0.0075?

One-way slabs typically have flexural reinforcement in the short direction to resist the entire load applied to the floor and only minimum steel for temperature and shrinkage effects in the long direction.

Because a slab is thinner than the beams supporting it, the concrete in the slab shrinks more rapidly than the concrete in the beams.

Enough space should be provided between the reinforcement to allow a vibrator to reach the bottom of the form in at least one place along the beam length.

A beam has dimensions of b = 18 in., h = 22 in., and d = 19.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 7,600 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the tensile force T in the reinforcement.

Cantilever beams loaded with only gravity loads develop positive bending moments throughout the span.