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Alternate Check for Metal Deck <br />Max Span L =ft <br />Deck Sect. Mod.Sx =in3 / ft <br />Tributary Width tw =in <br />Roof Dead Load wDL = psf * in = plf <br />PDL = psf * = lbs (Includes Rack Wt) <br />PWL = psf * = lbs <br />Moment in Deck MDL = lb-ft wDL * L2 / 12 (3 span condition) <br />= lb-ft 2* PDL * L / 4 (2 Bracket Point Loads) <br />MWL = lb-ft 2* PWL * L / 4 (2 Bracket Point Loads) <br />Total Moment M = lb-ft = lb-in <br />Section Modulus S =in3 <br />Bending Stress fb = psi <br />All. Bending Stress fb = psi Fy = 50 ksi <br />DCR = <br />29,940 <br />0.916 <br />21.00 <br />140 <br />169 <br />611 <br />920 <br />NS STRUCTURAL ENGINEERING, INC MADE BY: JL <br />4642 Rockland Place La Canada <br />Flintridge, CA 91011 <br />CHECKED BY: NS <br />PAGE NO. <br />Target 1441 W. 17th St. Santa Ana Solar Rooftop Project <br />11035.8 <br />2.9 13.9 ft² 42 <br />11 13.9 ft² 153 <br />8.00 * Tributary Width is based on the spacing between <br />brackets causing the largest point load on a given span.0.23 <br />10 21.00 17.5 <br />0.4025 <br />27,418 <br />1441 W 17th St - 101115926 & <br />20180369 <br />11/16/2023