A beam has dimensions of b = 20 in., h = 12 in., and d = 9.5 in. and is reinforced with 4 No. 10 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 = 4.909 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 3,700 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 4.481 in., determine the strain in the compression reinforcement, ε’s.

A beam has dimensions of b = 18 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 nominal moment capacity, Mn, of the beam.

A beam has dimensions of b = 14 in., h = 26 in., and d = 23.5 in. and is reinforced with 3 No. 5 bars. The concrete strength is 4,000 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the strength Mn for this beam.

VOCABULARY B. At College (Talking about Admired People) (3 pts) Paso 1 (2 pts)The daily routine of Rosalía’s friends on campus is very different. Complete each description phrase with the correct verb provided.  

A beam has dimensions of b = 18 in., h = 10 in., and d = 7.5 in. and is reinforced with 4 No. 7 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 = 2.914 in., does the reinforcement yield?

One of the four primary reasons for using compression reinforcement in beams is increased ductility.

A concrete cover of at least two bar diameters is required to sufficiently bond the reinforcement to the concrete.

A beam has dimensions of b = 14 in., h = 28 in., d’ = 2.5 in., and d = 25.5 in. It is reinforced with 2 No. 5 bars on the compression side and 5 No. 8 bars on the tension side. The concrete strength is 3,100 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the neutral axis is c = 6.547 in., determine the force in the compression reinforcement, Cs.

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 3,400 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?