(Answered): 9. You are analyzing a 12ft long concrete beam with a rectangular cross section, the width = 2.5ft ...

9. You are analyzing a 12ft long concrete beam with a rectangular cross section, the width = 2.5ft and depth = 4.4ft. A maximum moment of 1.3x106 ft-lb is applied to the beam due to a bending load acting at the mid-span of the beam. Bending Load Width Depth Support Support 12 ft a. What is the bending load to induce this moment? b. Measuring from the top of the beam, where on the beam's cross section is the normal stress = 0, in ft? c. What is the maximum tensile stress on the beam, in psi, and where on the beam's cross section does it occur? d. Determine the normal stress on the beam's cross section 1.2ft below the top of the beam.