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CITY OF SANTA ANA <br />Planning and Building Agency <br />Project Number: 251214 HOAG MEMORIAL <br />Approved <br />16. ROLL FORMED BRACE ANALYSIS - D #1 FOR PERWIFFTSUA-F CE <br />16.1 SUMMARY <br />aster ID: <br />Status: Pass te: <br />Unity Ratio: 86.5% _ <br />Governing LC <br />(1.2 + 0.2SDS)D + (1.2 + 0.2SDS)0.7P + / - PE <br />Brace Length, L: 50.4777 in <br />P, 2.168 kips <br />t <br />T, 0 kips <br />SECTION PROPERTIES <br />H (in) <br />1.5 <br />OtTn 13.7962 kips (0%) <br />W (in) <br />1.5 <br />�Cpl 2.5063 kips (86.5%) <br />Lip (in) <br />0.25 <br />t (in) <br />0.0598 <br />16.2 DESIGN TENSION STRENGTH <br />Rout (in) <br />0.1794 <br />0.90 <br />sty = , kr = 0.75 <br />Rin (in) <br />0.1196 <br />(�tyTn = OtyAgFy = 14.0085 kips > O kips OK <br />Rcent (in) <br />0.1495 <br />krTn = �tyAnFu = 13.7962 kips > 0 kips OK <br />Ag (in2) <br />0.283 <br />Ix (in4) <br />0.108 <br />16.3 NOMINAL BUCKLING STRESS <br />Sx (in) <br />0.144 <br />Kx=1, Ky=1, Kt=0.8 <br />Lx = 50.4777, Ly = 50.4777, Lt = O <br />S = 1 - (xo/ro)2 = 0.2821 <br />Rx (in) <br />0.62 <br />ly (in a) <br />0.076 <br />Sy (in3) <br />0.1288 <br />at = 1 - Ar2 G J + n2 EC 2=16.0421 <br />A. (Kt Lt) <br />Ry (in) <br />0.52 <br />vb (in) <br />0.75 <br />Determine elastic buckling stress, Fe <br />n2E <br />Fex = aex = � = 43.9244 ksi <br />CKx Lx/rx ) <br />Fy (ksi) <br />55 <br />Fu (ksi) <br />65 <br />E (ksi) <br />29,500 <br />n2E <br />Fey = aey = 2 = 30.8979 ksi <br />(KyLy/ry) <br />G (ksi) <br />11,300 <br />(in°)0.0003 <br />10.3 <br />2r�1J <br />1 [(o, <br />Fet = - x + at) - (oex + at) - 4NaeXat1=12.4837 ksi CONTROLSu <br />AC = Fy/Fet = 2.099 > 1.5 <br />Fn = rOTc27] Fy = 10.9482 ksi <br />L <br />16.4 DESIGN COMPRESSION STRENGTH <br />�c = 0.85 <br />Acorner = 0.5ntrcent = 0.014 <br />Ae = 4Acorner + tbw + 2t (bp + ds) = 0.2693 <br />�cPn = �cAeFn = 2.5063 kips > 2.168 kips OK <br />Made by OneRack 22 <br />