A beam has dimensions of b = 14 in., h = 30 in., d’ = 2.5 in…

A beam has dimensions of b = 14 in., h = 30 in., d’ = 2.5 in., and d = 27.5 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 2,800 psi, and the yield strength of the reinforcement is 60,000 psi. For the results given below, determine the strength Mn for this beam.a = 4.828 in. (depth of concrete stress block)Cc = 159.4 kips (compressive force in concrete)Cs = 30.2 kips (compressive force in steel)T = 189.6 kips (tensile force in steel)

A continuous beam’s flexural reinforcement must extend at le…

A continuous beam’s flexural reinforcement must extend at least _____ from the point where it is no longer needed to resist tension. Assume f’c = 4,000 psi, fyt = 40,000 psi, b1 = 29 in., b2 = 14 in., d1 = 4 in., d2 = 15 in., and that there are three No. 9 longitudinal tension bars and No. 3 stirrups at 11 in. o.c. The stirrup hooks are 90°.

For a beam with stirrup hooks, the free end of the bar must…

For a beam with stirrup hooks, the free end of the bar must extend at least _____ from the hook. Assume b1 = 39 in., b2 = 11 in., d1 = 4 in., d2 = 23 in., and that there are three No. 7 longitudinal tension bars and No. 4 stirrups at 6 in. o.c. The stirrup hooks are 90°.