A beam has dimensions of b = 18 in., h = 26 in., and d = 23….
A beam has dimensions of b = 18 in., h = 26 in., and d = 23.5 in. and is reinforced with 4 No. 7 bars. The concrete strength is 10,000 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.