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Iallow = 11.83 ft-sgrt(8M/w) <br />Check shear for foundation section (assumes no shear reinforcing), Condition All <br />Concrete: <br />Vc=4/3xphi x(sgrtf'c)xbxh <br />Sect <br />above <br />Phi = 0.65 <br />(sgrt f'c) = 50 (min of P00.5 and 100) <br />Footer shear strength: <br />Hf = s-2 6 in (reduction accounts for uneven excavation) <br />Bf = 16 in (from above) <br />Vf = 4,160 lb <br />Wall shear: <br />Hw = 24 in (from above) <br />Bw = 8 in (from above) <br />Vw = 8,320 lb <br />Conc. Vu tot = 12,480 lb (total allowable shear in the concrete) <br />Page 5 of 6 <br />