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A <br /> 19011 Wood-Sno Road NE,Suite 100 <br /> B T Woodinville,WA 98072-4436 <br /> Phone:425-814-8448 i <br /> ENGIlNTEER NG Fax:425-821-2120 <br /> Stud Wall Design <br /> Based on 2018 NDS Combined axial and bending formula: <br /> [fc/F,l`+fb/Fb11-(fc/FcE)] < 1 in which: FCE =0.822(Emin')/(te/d)2 <br /> Wall: Interior Walls Wall Height: 9 ft <br /> Desired Stud Spacing: 16 in oc <br /> No Fire Rating Design Axial Dead Load: 338 plf <br /> 2x4 4p, Design Axial Live Load: 900 plf <br /> SPF Stud Design Axial Snow Load: 0 plf <br /> Design Lateral Pressure (0.6W): 5 psf <br /> Deflection Criteria: L/ 180 <br /> STUD CHECK Qe/d < 50 OK <br /> D+0.6W (CD= 1.60) <br /> [fc/Fg +fb/Fb'[1-(fc/FcE)] = 0.31 < 1 OK <br /> fc/FcE2+ (fb/FbE)` = 0.00 < 1 OK <br /> D+0.75L+0.75(0.6W)+0.755 (CD= 1.60) <br /> [fe/Fc.J2 +fb/Fe[1-(fc/FCE)] = 0.99 < 1 OK <br /> fc/FcE2+ (fb/FbE)` = 0.00 < 1 OK <br /> D+0.75L+0.75S (Co= 1.15) <br /> fc/Fc' = 0.76 < 1 OK <br /> D+L (CD= 1.0) <br /> fcJFc' = 0.95 < 1 OK <br /> Deflection (No Increase for Load Duration): <br /> Defl: L/ 180 = 0.60 0.15 < 0.60 OK <br /> SPF Stud 2x4 @ 16 oc OK <br /> PLATE CRUSHING CHECK' <br /> Checks Crushing for Stud Spacing` <br /> No Stress Increase for Load Duration <br /> Hem Fir Plates: fc/FC1' = 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 /> Date: 1/27/2021 <br /> Page: M1 .4 <br />