32 in. 16 ft. 8 in. Control joint
Design the reinforced masonry beam in the wall shown below. The wall is to be constructed of fully grouted hollow concrete masonry units in running bond. It is to carry its own weight plus a superimposed dead load of 2.5 kips/ft and a live load of 0.8 kip/ft. Determine the width of the masonry units (by trials), and the amounts of the longitudinal and shear reinforcement required using the strength design method of TMS 402-22. Show the layout of the reinforcements with diagrams. Use fm = 2,000 psi, Grade 60(60 ksi) steel, and Type S Portland cement mortar. Assume that the centroid of the bottom rebar is 3 inches from the bottom face of the beam. ( you may assume that the unit weight of fully grouted concrete masonry is 125 lbs per cubic foot.)
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