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<br />. <br />X,) '':;hear (Cont.): <br /> <br />Sanchez Residence <br /> <br />Roof Diaphragm: <br /> <br />Maximum shear at roof I wall interface = 320.7 plf <br /> <br />Capacity of non-blocked sheathing (SBC Table 171O.2A) = 240,0 plf <br /> <br />Capacity of blocked sheathing (diaphragm) = 360,0 plf <br />(15/32" RS, wi 8d nails at 4" bndry, 6" edges) <br /> <br />Half Building length = <br /> <br />27,3 ft <br /> <br />Slope of the shear diagram = <br /> <br />11. 7 plf I ft <br /> <br />Diaphragm length required to resist shear = <br /> <br />6.9 ft <br /> <br />( Round value up to nearest truss multiple of truss spacing) <br /> <br />Analysis of shear at roof/wall interface: <br /> <br />Location along Distance Shear at <br />building length from endwall (ft) interface (pit) <br />Endwall 0,0 320,7 <br />0,1 * Length 5.5 256,5 <br />0,2 * Length 10,9 192.4 <br />0,3 * Length 16.4 128.3 <br />0.4 * Length 21.9 64,1 <br />Mid-span 27,3 0,0 <br />0,6 * Length 32,8 -64.1 <br />0,7 * Length 38,3 -128,3 <br />,0,8 * Length 43.7 -192.4 <br />0,9 * Length 49,2 -256,5 <br />Endwall 54,7 -320,7 <br /> <br />Page 9 <br /> <br />