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<br />x.) Shear: <br /> <br />Wedgewood Model 1793 <br /> <br />Load to ceiling/roof diaphragm: <br />Height: 0_15d 15-20 20-40 40-60 T ota! <br />Total hz. Pressure = 330.8 0.0 0.0 0.0 330.8 <br /> <br />pvlf <br /> <br /> <br />0.0 9261.0 lbs <br /> <br />Total shear transferred to sidewall = 9261.0 lbs <br /> <br />Unit Shear: <br /> <br />v=R/b <br />Unit Shear (v) =1 <br /> <br />272.41 <br /> <br />0.01 <br /> <br />0.01 <br /> <br />0.01 <br /> <br />272.4lplf <br /> <br />Unit Shear at Midheight walls (v'): (Design case) <br /> <br />Total width of openings at mid-height wall: 12.8 ft <br /> <br />Length of wall available to resist shear = 21.3 ft <br /> <br />Unit Shear @ Midheight ( v' ) = <br /> <br /> <br />Select structural element to resist v' from SBC tables ie. 171O.2B <br /> <br />Shear capacity of structural element: 600 plf <br /> <br />Required length of transverse shearwall = Dill ft <br />Required length if non-continuous = ~ ft <br /> <br />Longitudinal shear: <br /> <br />Height: 0-15 15-20 20-40 .40-60 Total <br />Pressure: 25,2 27.6 33.6 37.2 <br />Contributing Height: 7.3 -0.5 -5.5 -25.5 <br />Unit Hz. Pressure = 182.7 0.0 0.0 0.0 <br />Reaction (R) = 3105.9 0.0 0.0 0.0 3105.9 <br />Unit shear (v=R/l) = 55.5 0.0 0.0 0.0 55,5 <br />Tot. opngs. <m mid ht 9,0 9.0 9.0 9.0 9.0 <br />Unit Shear ( v') = 66.1 0,0 0.0 0,0 66.1 <br /> <br />lbs <br />plf <br />ft <br />plf <br /> <br />Required length of longitudinal shearwall = ~ ft <br />Required length if non-continuous = ~ ft <br /> <br />Page 8 <br /> <br />James Catalano. P,E, <br />4120/9-1- <br />