The moment-curvature relationship is linear up to the crushing point and is referred to as the cracked-elastic range.

A beam has dimensions of b = 14 in., h = 24 in., and d = 21.5 in. and is reinforced with 2 No. 5 bars. The concrete strength is 3,700 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.

A sample of water contains 0.050 grams of arsenic (As) in 4.0 liters of water. Calculate the concentration of arsenic in the water in parts per million (ppm).

_____ shall be the greater of 3sqrt(f’c)bd/fy and 200bd/fy.

Determine As,min for the following beam given that f’c = 7,500 psi and fy = 60,000 psi.

A beam has dimensions of b = 16 in., h = 22 in., and d = 19.5 in. and is reinforced with 4 No. 5 bars. The concrete strength is 2,800 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.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 6 No. 8 bars at a depth of 22 in. The top row contains 3 No. 5 bars at a depth of 17.5 in. Determine the effective (centroidal) depth, d, of the steel.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 6 No. 8 bars at a depth of 22 in. The top row contains 3 No. 5 bars at a depth of 17.5 in. Determine the effective (centroidal) depth, d, of the steel.

One of the three basic assumptions in the theory of flexure for reinforce concrete is that the strain in the reinforcement is less than the strain in the concrete at the same level.

Suzy chemist finds that an unknown compound contains 15.0% C and 85.0% O by weight. Calculate its empirical formula.