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CITY OF SANTA ANA <br />Planning and Building Agency <br />Guardian Fall Protection <br />Halas Eng <br />neering�YlS <br />C13-18 Welded <br />Approved <br />FOR PERMIT ISSUANCE <br />Stanchion <br />ANSI Ultimate <br />Load - Horizontal <br />P = <br />5000 lb <br />Pipe material = A53, Gr B <br />Sched 80 <br />Master ID: <br />Fu = <br />60 ksi <br />Date: <br />Pipe Dia (nominal) = <br />2.5 in. <br />Outside Diameter = <br />OD = <br />2.875 in. <br />Inside Diameter = <br />ID = <br />2.323 in. <br />Wall thickness = <br />tw = <br />0.257 in. <br />Torsion radius = <br />rt= OD/2-dh/2 <br />1.125 in. <br />Polar Mom. of Inertia = J = <br />3.66 in.4 <br />Area = <br />A = <br />2.11 in.2 <br />Plastic Section = <br />Zx = <br />1.77 in.3 <br />Height = <br />H = <br />21 in. <br />Load Angle <br />0 = <br />0 deg. <br />Angled Load - <br />Horiz. Component <br />Ph = P cos9 = <br />5000 lb <br />Vert. Component <br />Pv = P sin6 = <br />0 lb <br />Moment (max) = <br />M = Ph x H = <br />105000 in -lb <br />Torsion = <br />T = P x n = <br />5625 in -lb <br />STRESS <br />Bending <br />fb = M/Zx = <br />59322 psi <br />Torsion <br />ft = (T x OD/2) /J <br />2209 psi <br />Shear <br />fv = P/A = <br />2370 psi <br />Torsion + Shear <br />tts = t + v = <br />4579 psi <br />Combined Stresses <br />fl _ ((fb)2 + tts2).' = <br />59498 psi <br />Fu (Fy) = <br />60 Ksi <br />= <br />1.0 <br />Fu (Fy) = <br />60 Ksi <br />Factor of Safety <br />FS = <br />1.01 > 1 OK <br />Weld at Base of Stanchion <br />Weld size = <br />0.3125 in. <br />Effective weld length = Lw = <br />9.7 in. <br />Effective throat = <br />tw <br />0.221 in. <br />Effective weld area = <br />Aw <br />2.15 in2 <br />Plastic section = <br />Zx = <br />2.12 in3 <br />P/Aw = <br />fv = <br />2328 psi <br />Polar Mom. of Inertia = J = <br />5.15 <br />Torsion <br />ft = <br />1389 psi <br />M/Z = <br />fb = <br />49491 psi <br />fw = (fv2 + fb2)1i2 = <br />fw = <br />49545 psi <br />Weld Strength <br />Fexx = <br />70000 psi <br />Load angle <br />0 = <br />90 deg <br />Fw = (AISC Eq. J2-5) <br />.6Fexx(1+.5sin1-56) <br />63000 psi <br />= <br />1.0 <br />Fw Allow = <br />63000 psi <br />Factor of Safety <br />FS = Fw/fw <br />1.27 > 1 OK <br />Sheet 2 of 3 <br />8/4/2025 <br />