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70 '; a a m ,t 4 a STRUCTURAL ANALYSIS &DESIGN <br /> ->Distributive load on beam, wl - from level 1 <br /> ->From location 0.00 ft to 5.40 ft <br /> wL = 40.00 psf x 15.63 ft x (15.63 ft - 2 x 0.00) / (2 x 15.63) = 312.50 lb/ft <br /> wD = 12.00 psf x 15.63 ft x (15.63 ft - 2 x 0.00) / (2 x 15.63) = 93.75 lb/ft <br /> ->Computed moments and shears (Factored) : <br /> Max shear = 1593 lbs D + (0.75)0.7E + 0.75S + 0.75L (2.4-6c) <br /> Min shear = -1593 lbs D + (0.75)0.7E + 0.755 + 0.75L (2.4-6c) <br /> Max moment = 2148 ft-lbs D + (0.75)0.7E + 0.755 + 0.75L (2.4-6c) <br /> Min moment = -0 ft-lbs D + S (2.4-3) <br /> ->Beam properties (2D xy axis) : <br /> Span = 5.40 ft <br /> Area = 19.25 sq.in <br /> Sx = 17.65 sq.in <br /> ,Ixx = 48.53 sq.in <br /> ->Check shear : <br /> fv = 1.5 x V / Area = 1593 / 19.25 = 124.12 psi <br /> F'v = 180.00 x 1.60 x 1.00 x 1.00 x 1.00 = 288.00 psi <br /> Fv = 180 psi, CD = 1.60, Cm = 1.00, Ct = 1.00, Ci = 1.00. <br /> ->Check bending : <br /> fb-top = M x 12 / Sx = 25773 / 17.65 = 1460.58 psi <br /> fb-btm = M x 12 / Sx = 0 / 17.65 = 0.00 psi <br /> Fb = 900 psi, CD = 1.60, Cm = 1.00, Ct = 1.00, Cl = 1.00, <br /> Cf = 1.30, Cfu = 1.00, Ci = 1.00, Cr = 1.00. <br /> Fb'x CD x CM x CT x CL x CFx CFU x CI x CR = 1872 psi <br /> ->Check bearing : <br /> ->Check deflections : <br /> Number of deflection spans = 1 <br /> Deflection span 0, Length = 5.40 ft Combined deflection = -0.145 [D + (0.75)0.7E + 0.755 + <br /> 0.75L (2.4-6c)] <br /> Allowed = 5.40 x 12 / 360.0 = 0.180 in. <br /> Allowed (Seismic controled) = 5.40 x 12 / 180.0 = 0.360 in. <br /> Phone: (425) 343-7517 I Fax(425)493-8388 Page 3 of 5 <br />