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P1.42 <br />OC Probation <br />1700 East Saint Andrew Place, Santa Ana, California 92705 <br />23-12434 <br />07/24/2024 <br />NN <br />CATWALK DESIGN-(N) Bearing Wall: <br />Key Plan: <br />In-plane seismic Design of Metal Stud Wall: <br />Cs = 0.157 (See next page excel sheet) <br />Seismic weight W= framing + weight of wall <br />weight of wall = [8psf x 36ft x (19'/2 + 0)] /(36ftx6ft) = <br />13psf <br />W = 15psf + 13psf = 28psf <br />V = Cs x W = 0.157 x 28psf = 4.4psf, say 5psf <br />V = 5psf x 36ft x 6ft = 1080lb <br />Seismic load is dragged to metal stud wall, <br />therefore Vu-wall = 1080lb <br />Lwall = 36ft <br />Hwall = 19ft <br />Vreq = 1080lb/36ft = 30plf (ultimate) = 21plf (service) <br />Per AISI S400, Type I shearwall will be used: <br />h/w = 19ft/36ft = 0.53 < 2 <br />Vn = Vn W (equation 1.3.1.1-1) <br />From table E1.3-1: <br />Using 15/32" Structural 1 on one side of the wall, and <br />using #8 screws @6:12 -----> vn = 780plf x 0.6 = 468plf > <br />Vreq = 21plf , OK <br />1700 E St Andrew <br />Pl10/8/2024