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Customer S&H Systems <br />Project Collectors.com <br />Job Number 10010 <br />6 SIDE MNT. GUARD RAIL Page 11.6 <br />Support Beam Weak Axis Capacity <br /> Top Flange is Laterally Fixed, Analyze Bottom Flange Bending <br />Ω =1.67 <br />Beam Length 8.0 ft Fy = 50 Ksi <br />Lbr 4.0 ft d = 8 in <br />Lateral Brace at each upright No Ix = 13.8 in4 <br />Point Load at Top of Post, Ph 200 Lb Sxe = 3.46 in3 <br /> Factored Point Load at Top of Post, 0.75*Ph 150 Lb Iy = 1.26 In4 <br />Support beam Size 8C12 Sye / 2 = 0.360 In3 <br />Distance from Top Rail to Beam Flange 44.250 in Mxf / Ω =14.40 K-Ft <br />Lateral force at Bottom Flange, Ph = 150*44.25 / 8 = 830 Lb Myf / Ω =1.50 K-Ft <br />L /Lb 2 <br />Myf = 0.203 * 830 * 4 = 0.67 K-Ft OK <br />Support Beam Strong Axis Capacity at Bottom Flange <br />Trib. width =2.00 Live Load ASD Factor 0.75 <br />L = 8.00 Ft W DL + 0.75*W LL = 85 Psf <br />P1DL =0 Lbs.P2DL =0 Lbs. <br />P1LL =0 Lbs.P2LL =0 Lbs. <br />P1TL =0 Lbs.P2TL =0 Lbs. <br />a =0.00 b = 8.00 c =5.00 Ft <br />W TL = 170 Lb/Ft <br />R1TL= 680 R2TL= 680 <br />Location of Max Mx Moment from Vertical Loads, X = 4.00 <br />Location of Max Moment at Railing Post, X = 2.00 Ft <br />M @ X= 2 1.4 K-Ft M @ X=2 1.0 K-FT <br />Combined Forces <br />Unity = 1 / 14.4 + 0.67 / 1.5 = 0.52 OK <br />Steele <br />Solutions Inc. <br />6737 W. Washington St. West Allis, WI 53214