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T <br /> w— 19011 Wood-$no Road NE,,Suite 100 <br /> 13, <br /> Woodinville,WA 98072-4436 <br /> Phone:425-814-8448 1 <br /> ENGMEERING Fax;425-821-2120 <br /> Stud Wall Design <br /> Based on 2018 NDS Combined axial and bending formula: <br /> [fd Fn]`+fdFb[1-(fdFa)]< 1 in which: F =0.$22(Emin')/(ijd)2 <br /> Wall: Interior Walls Wall Height: 9 ft <br /> Desired Stud Spacing. 24 in oc <br /> No Fire Rating V Design Axial Dead Load: 203 plf <br /> 2A .r Design Axial Live Load: 540 plf <br /> SPF Stud r Design Axial Snow Load: 0 pif <br /> Design Lateral Pressure (0.6W): 5 psf <br /> Deflection Criteria: U 180 <br /> STUD CHECK leld < 50 OK <br /> D+0.6W(CD= 1.60) <br /> [fdF.']`+fb/Fb[1-(fdF�)]= 0.41 < 1 OK <br /> fdF.E2 +(fb/Fbrz)`= 0.00 < 1 OK <br /> D+0.75L+0.75(0.6W)+0.75S(Co= 1,60) <br /> [fdFJ2 +fb/Fe[14fdF E)] = 0.99 < 1 OK <br />` fj/ E2+(fb'FbE)`= 0.00 < 1 OK <br /> D+0.75L+0.75S (CD= 1.15) <br /> fdF�`= 0.69 < 1 OK <br /> D+L(Cc)= 1.0) <br /> fdF,, = 0.86 < 1 OK <br /> Deflection(No Increase for Load Duration): <br /> DeFI: U 180 = 0.60 0,23 < 0.60 OK <br /> SPF Stud x oc <br /> Checks Crushing for Stud Spacing` <br /> No Stress Increase for Load Duration <br /> Hem Fir Plates: fdF�,'= 0.46 < 1 OK <br /> Douglas Fir Plates: fdF = 0.30 < 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: M 1.3 <br />