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19011 Wood-Sno Road NE,Suite 100 <br /> BTL <br /> Woodinville,\OVA 98072-4436 <br /> Phone:425-814-8448 i <br /> ENGINEERING Fax:425-821-2120 <br /> Stud Wall Design <br /> Based on 2018 NDS Combined axial and bending formula: <br /> [fdF,']`+fb/Ft[1-(fjF.E)]< 1 in which: F E=0.822(Emin')/(tdd)2 <br /> Wall: Interior Walls Wall Height: 9 ft <br /> Desired Stud Spacing: 24 in oc <br /> No Fire Rating ® Design Axial Dead Load: 203 plf <br /> zx4 ®. Design Axial Live Load: 540 pif <br /> SPF Stud Design Axial Snow Load: 0 pif <br /> Design Lateral Pressure(0.6W): 5 psf <br /> Deflection Criteria: U 180 <br /> STUD CHECK 1a/d < 50 OK <br /> D+0.6W(Co= 1.60) <br /> [fj,]'+fb/Fe[1-(f jF.E)l= 0.41 < 1 OK <br /> fdF.0+(fb/FbE)`= 0.00 < 1 OK <br /> D+0.75L+0.75(0.6W)+0.75S(CD= 1.60) <br /> [fdF,']z+fdFe[1-(f jF s)]= 0.99 < 1 OK <br /> fdFa2+(fb/Fbs)`= 0.00 < 1 OK <br /> D+0.75L+0.75S(Cc)= 1.15) <br /> fdF.= 0.69 < 1 OK <br /> D+L A= 1.0) <br /> fjF.'= 0.86 < 1 OK <br /> Deflection(No Increase for Load Duration): <br /> Defl: U 180 = 0.60 0.23 < 0.60 OK <br /> SPF-STH—N4 @ 24 oc OK <br /> Checks Crushing for Stud Spacing` <br /> No Stress Increase for Load Duration <br /> Hem Fir Plates: fjFZ= 0.46 < 1 OK <br />` Douglas Fir Plates: fdF.L= 0.30 < i OK <br /> Plate must also be checked for bending. <br /> z 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 .3 <br /> 1 <br />