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19011 Wood-Sno Road NE, Suite 100 <br />BTL <br />Woodinville, WA 98072-4436 <br />Phone:425-814-8448, <br />ENGINEERING 1�ax: 425-821-2120 <br />Stud Wall Design <br />Based on 2018 NOS Combined axial and bending formula: <br />[f./F.' ]2 + fb/Fa [1-(fjF.E)l < 1 in which: FrE = 0.822(Emin')/(1e/d)2 <br />Wall: Interior Walls Wall Height: <br />Desired Stud Spacing: <br />No Fire Rating V Design Axial Dead Load: <br />2x4 Design Axial Live Load: <br />SPF stud rr Design Axial Snow Load: <br />Design Lateral Pressure (0.6W): <br />Deflection Criteria: U <br />STUD CHECK <br />Ce/d <br />< <br />50 <br />OK <br />D+0.6W (Cc, = 1.60) <br />[fjF,'j` + fb/Fb'[1-(fjF,,E)] = <br />0.31 <br />< <br />1 <br />OK <br />fCFcE2 + (fb/FbEY = <br />0.00 <br />< <br />1 <br />OK <br />D+0.75L+0.75(0.6W)+0.75S (Co = 1.60) <br />[fdF.' )' + [1-(f jFcE)] = <br />0.99 <br />< <br />1 <br />OK <br />lfblFe <br />fC FcE2 + (fb/FbEY = <br />0.00 <br />< <br />1 <br />OK <br />D+0.75L+0.75S (Co = 1.15) <br />fjF.' = <br />0.76 <br />< <br />1 <br />OK <br />D+L (Co = 1.0) <br />fdFc' = <br />0.95 <br />< <br />1 <br />OK <br />Deflection (No Increase for Load Duration): <br />Defl: U 180 = 0.60 <br />0.15 <br />< <br />0.60 <br />OK <br />oc <br />Checks Crushing for Stud Spacing` <br />No Stress Increase for Load Duration <br />Hem Fir Plates: f,/Fr = 0.51 < 1 OK <br />Douglas Fir Plates: fc/Fci = 0,33 < 1 OK <br />Plate must also be checked for bending. <br />2 Check on crushing only applies to stud spacing. Joists above <br />must also be checked for crushing effect on plate. <br />Also, no stress increase is allowed due to load duration. <br />9 ft <br />16 in oc <br />338 plf <br />900 plf <br />0 plf <br />5 psf <br />180 <br />Date: 1 /27/2021 <br />Page: M1.4 <br />