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COLUMN ANALYSIS: 4ft Wide Bay ( Level 1 ) <br />Analyzed per RMI, AISI 2012 (LRFD) and the 2022 CBC. <br />Section subject to torsional or flexural-torsion buckling (Section C4.1.2) <br />Kx <br /> . Lx / Rx = 1.7 . 58 / 1.489 = 66.23 <br />Ky <br /> . Ly / Ry = 1 . 44 / 1.034 = 42.54 <br />KL/Rmax = 66.23 <br />ro =(rx <br />2 + ry <br />2 + Xo <br />2)1/2 (Eq. C3.1.2.1- <br />7) <br />= (1.4892 + 1.0342 + -2.5792)1/2 = 3.152 in. <br />b = 1 - (Xo/ro)2 (Eq C4.1.2-3) <br />= 1 - (-2.579/3.152)2 = 0.331 <br />Fe1 = P2E / (KL/r)max <br />2 (Eq C4.1.1-1) <br />= 3.142 . 29500 / 66.232 = 66.381 ksi <br />Fe2 =(1 / 2b)((sex + st) - (sex + st)2 - (4bsexst))1/2)(Eq C4.1.2-1) <br />= (1 / (2 . 0.331)((66.381 + 139.722) - (66.381 + 139.722)2 <br />- (4 . 0.331 . 66.381 . 139.722))1/2)= 48.827 ksi <br />where: <br />sex =P2E / (KxLx / Rx)2 (Eq C3.1.2-11) <br />= 3.142 . 29500 / 66.232 = 66.381 ksi <br />st =1 / Aro <br />2(GJ + (P2ECw) / (KtLt)2)(Eq C3.1.2-9) <br />= 1 / 0.875 . 3.1522(11300 . 0.002 <br />+ (3.142 . 29500 . 5.085) / (0.8 . 44)2) = 139.722 ksi <br />Fe = Min(Fe1, Fe2) =48.827 ksi <br />Pn = Aeff <br /> . Fn (Eq C4.1-1) <br />lc = (Fy / Fe)1/2 = (55 / 48.827)1/2 = 1.061 (Eq C4.1-4) <br />Since lc < 1.5: <br />Fn = (0.658^(lc <br />2)) . Fy = 34.325 (Eq C4.1-2) <br />Thus: <br />Pn = 22327 lbs <br />Pa = 18978 lbs <br />4 x 3 - .0787 (14Ga) <br />SECTION PROPERTIES <br />Depth 3 in. <br />Width 4 in. <br />t 0.079 in. <br />Radius 0.13 in. <br />Area 0.875 in.2 <br />AreaNet 0.696 in.2 <br />Ix 1.94 in.4 <br />Sx 0.97 in.3 <br />Sx Net 0.856 in.3 <br />Rx 1.489 in. <br />Iy 0.937 in.4 <br />Sy 0.495 in.3 <br />Ry 1.034 in. <br />J 0.002 in.4 <br />Cw 5.085 in.6 <br />Jx 2.8 in. <br />Xo -2.579 in. <br />Kx 1.7 <br />Lx 58 in. <br />Ky 1 <br />Ly 44 in. <br />Kt 0.8 <br />Fy 55 ksi <br />Fu 70 ksi <br />Q 0.9 <br />G 11300 ksi <br />E 29500 ksi <br />Cmx 0.85 <br />Cs -1 <br />Cb 1 <br />Ctf 1 <br />Phib 0.9 <br />Phic 0.85 <br />PROJECT: <br />FOR: <br />ADDRESS: <br />SHEET#: <br />CALCULATED BY: <br />DATE: <br />Power Distribution Inc <br />Aztec_steve peterson <br />4011 W. CARRAIGE D <br />SANTA ANA, CA <br />15 <br />kelvira <br />6/19/2024 <br /> TEL:(909)869-0989 <br /> 1130 E. CYPRESS ST, COVINA, CA 91724 <br />PN:20240103_2 <br />4011 W Carriage Dr <br />9/11/2024