3. (40 pts) For the beam cross section shown below, determine the following: a. The nominal flexural strength (M) and the design flexural strength (M) given the reinforcement, dimensions, and material properties shown. b. The maximum area of grade 60 reinforcement allowed by the ACI code for this section. Would the given area of steel (6 #8 bars) violate this requirement? c. The area of grade 60 reinforcement corresponding to a tension-controlled section. 26" 23.5" 1.5" 6 #8 12" = 5,000 psi = 60,000 psi