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10110 SO 1 LN HA =1511 1 ON <br />19011 Wood Sno Road NE, Suite 100 <br />Woodinville, WA 98072-4436 <br />Phone: 425-814-8448, <br />Fax: 425-821-2120 <br />Stud Wall Design <br />Based on 2018 NDS Combined axial and bending formula: <br />[f./FJ2 + fb/Fti [1-(f./F.E)1 < 1 in which: F,E = 0.822(Emin')/(tjd)2 <br />Wall: Interior Walls Wall Height: <br />9 ft <br />Desired Stud Spacing: <br />16 in oc <br />No Fire Rating Design Axial Dead Load: <br />338 plf <br />2X4 Design Axial Live Load: <br />900 plf <br />SPF Stud Design Axial Snow Load: <br />0 plf <br />Design Lateral Pressure (0.6W): <br />5 psf <br />Deflection Criteria: U <br />180 <br />STUD CHECK <br />Cjd <br />< <br />50 <br />OK <br />D+0.6W (Co = 1.60) <br />[fjFc12 + fb/Fb'[1-(fo/F.E)1 = <br />0.31 <br />< <br />1 <br />OK <br />f./F.E2 + (fb/FbE)` = <br />0.00 <br />< <br />1 <br />OK <br />D+0.75L+0.75(0.6W)+0.75S (CD = 1.60) <br />[ftl Fc]2+fb/Fb'[1-(fdF.E)1= <br />0.99 <br />< <br />1 <br />OK <br />fc/FCE2 + (fb/FbEY = <br />0.00 <br />< <br />1 <br />OK <br />D+0.75L+0.75S (CD = 1.15) <br />f./Fc' = <br />0.76 <br />< <br />1 <br />OK <br />D+L (CD = 1.0) <br />f./Fc' = <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 />SPF Stud <br />2x4 @ 16 oc <br />OK <br />PLATE CRUSHING CHECK' <br />Checks Crushing for Stud Spacing` <br />No Stress Increase for Load Duration <br />Hem Fir Plates: fdl= '= 0.51 < 1 <br />OK <br />Douglas Fir Plates: fdl= '= 0.33 < 1 <br />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 />