A beam has dimensions of b = 18 in., h = 10 in., and d = 7.5 in. and is reinforced with 5 No. 6 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 = 2.9 in., does the reinforcement yield?

Beams that span from column to column are commonly referred to as girders.

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

Which symbol represents the assumed maximum useable compression strain in concrete?

A beam has dimensions of b = 14 in., h = 26 in., and d = 23.5 in. and is reinforced with 3 No. 8 bars. The concrete strength is 6,400 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.

Determine As,min for the following beam given that f’c = 3,250 psi and fy = 60,000 psi.

Determine As,min for the following beam given that f’c = 7,750 psi and fy = 60,000 psi.

Elasticity is the name given to a sample’s ability to deform beyond its yield point without a significant loss of strength.

The elastic beam theory is not used in the design of reinforced concrete beams because (1) the compressive stress-strain relationship for concrete becomes non-linear at higher strain values and (2) concrete cracks at low tensile stresses making it necessary to use reinforcing steel.

A beam has dimensions of b = 14 in., h = 22 in., and d = 19.5 in. and is reinforced with 2 No. 7 bars. The concrete strength is 6,400 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 0.945378 in. and the strain in the reinforcement is εs = 0.042172, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.