Practice

A fully grouted 8-in. CMU wall (actual thickness 7.625 in.) spans vertically and is reinforced with No. 5 bars at 12 in. on center, centered in the wall, giving $A_s = 0.31$ in² per foot and $d = 3.81$ in. The masonry has $f'_m = 2{,}000$ psi and $E_m = 1{,}800$ ksi; the steel has $E_s = 29{,}000$ ksi. The allowable stresses are $F_b = 900$ psi in the masonry and $F_s = 32{,}000$ psi in the steel. By allowable stress design, the allowable out-of-plane moment per foot of wall is most nearly:

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