A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 8 No. 6 bars at a depth of 24 in. The top row contains 6 No. 8 bars at a depth of 18 in. Determine the effective (centroidal) depth, d, of the steel.

A beam has dimensions of b = 20 in., h = 10 in., and d = 7.5 in. and is reinforced with 5 No. 5 bars. The concrete strength is 4,400 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 1.498 in., does the reinforcement yield?

Ralph is the behaver. Which of the following is an example of an antecedent?

A beam has dimensions of b = 20 in., h = 12 in., and d = 9.5 in. and is reinforced with 5 No. 6 bars. The concrete strength is 2,900 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 3.15 in., does the reinforcement yield?

A fire alarm begins ringing. This is an example of a(n):

Which of the following demonstrates a weakening effect on behavior?

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 4,000 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 4.199 in., determine the strain in the compression reinforcement, ε’s.

You are considering a beam design that has dimensions of b = 16 in., h = 30 in., and d = 27.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 9,100 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?

Karmin disobeys his therapist because he has oppositional defiant disorder (ODD).  This is an example of which type of explanation for behavior?

You are considering a beam design that has dimensions of b = 18 in., h = 28 in., and d = 25.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 9,100 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?