Design the 10 ft long masonry lintel shown in the figure below. The dead load on the lintel is 700 lb/ft and the live load is 350 lb/ft. Fully grouted clay masonry is used with a nominal thickness of 8 in.,a weight of 80 Ib/ft2, and specified design strength of 1500 Ib/in2. The total depth (height of parapet plus distance between the roof and the lintel) is 4 ft. Use Masonry cement Type M mortar.
a. Determine the longitudinal reinforcement of the lintel based on flexural strength.
b. Determine the shear reinforcement.