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<br />x.) Shear (Cont.): <br /> <br />Brown Residence <br /> <br />Roof Diaphragm: <br /> <br />Maximum shear at roof / wall interface = 244.8 plf <br /> <br />Capacity of non-blocked sheathing ( SBC Table 1710.2A) = 240,0 plf <br /> <br />Capacity of blocked sheathing (diaphragm) = 530.0 plf <br />(15/32" R.S. w/ 8d nails at 2-1/2" bndry, 4" edges) <br />Half Building length = 28.8 ft <br /> <br />Slope of the shear diagram = <br /> <br />plf / ft <br /> <br />8.5 <br /> <br />Diaphragm length required to resist shear = <br /> <br />0.6 <br /> <br />ft <br /> <br />( Round value up to nearest truss multiple of truss spacing) <br /> <br />Analysis of shear at roof7wall interface: <br /> <br />Location along Distance Shear at <br />building length from endwall (ft) interface (pIt) <br />Endwall 0.0 244.8 <br />0.1 * Length 5.8 195.8 <br />0.2 * Length 11.5 146.9 <br />0,3 * Length 17.3 97.9 <br />0.4 * Length 23.1 49.0 <br />Mid-span 28.8 0.0 <br />0.6 * Length 34.6 -49.0 <br />0,7 * Length 40.4 -97.9 <br />0.8 * Length 46.1 -146.9 <br />0.9 * Length 51.9 -195.8 <br />Endwall 57.7 -244.8 <br /> <br />Page 9 <br /> <br /> <br />;1{1 <br /> <br />ana, P. E. <br />9/9/94 <br />