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B <br />T <br />L <br />19011 Wood-Sno Road NE, Suite 100 <br />Woodinville, WA 98072-4436 <br />Phone 425-814-8448, <br />ENC,�NEER YNG <br />Fax: 425-821-2120 <br />Stud Wall Design <br />Based on 2018 NDS Combined axial and bending formula: <br />jfJF,- j` + fb1Fb'11-(fdFes)j < 1 in which: FE = 0.822(Emin')/(1jd)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 pif <br />2x4 Design Axial Live Load: 540 plf <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 <br />Eeld <br />< <br />50 ...... <br />..... OK <br />D+0.6W (CD = 1.60) <br />[fjFe')L + fb1Fu[1-(fjFce)} = <br />0.41 <br />< <br />1 <br />OK <br />fdF1-e2 + (fb/FbE)` = <br />0.00 <br />< <br />1 <br />OK <br />D+0.75L+0.75(0.6W)+0.75S (Cc, = 1.60) <br />[f./Fo')2 + fb/Fb [1-(fWF.E)j = <br />0.99 <br />< <br />1 <br />OK <br />f./F.E2 + (fb/Fbd" = <br />0,00 <br />< <br />1 <br />OK <br />D+0.75L+0.76S (Cp = 1.15) <br />f jF�= <br />0.69 <br />< <br />1 <br />OK <br />D+L (Cc) = 1.0) <br />fjF�= <br />0.86 <br />< <br />1 <br />OK <br />Deflection (No Increase for Load Duration): <br />Defl: U 180 = 0.60 <br />0.23 <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: fdF.' = 0.46 < 1 OK <br />Douglas Fir Plates: fj. = 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 />