ARC322 Homework 14 SOLUTION 2008

ARC322 Homework 14 SOLUTION 2008 - ARC322 Homework #14 16...

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ARC322 Homework #14 16 Points 1. A W18x35 spans 25 ft. It carries a load of 239,000 lb from an interior column (W12x58) on the top of the W18x35 10 ft from R 1 . Is web stiffening required in the beam? Structural Diagram Required. Maximum Load Condition “B” = (0.66F y )(t w )(N+5(k)) W18x35 t w = 0.3 in W12x58 d = N = 12.19 in W18x35 k = 1.125 in Maximum Load = (0.66 x 36,000 lb/in 2 )(0.3 in)(12.19 in+5(1.125 in)) Maximum Load = 128,268 LB < 239,000 LB … Web Stiffening IS Required 4 points 2. A W12x65 carries a Condition “A” column load of 189,000 lb (W10x33 column). Is web stiffening required? Maximum Load Condition “B” = (0.66F y )(t w )(N+2.5(k)) W12x65 t w = 0.39 in W10x33 d = N = 9.73 in W12x65 k = 1.3125 in Maximum Load = (0.66 x 36,000 lb/in 2 )(0.39 in)(9.73 in + 2.5(1.3125 in)) Maximum Load = 121,785 LB < 189,000 LB … Web Stiffening IS Required 4 points 25 ft 10 ft W18x35 1 point dwg P = 239,000 LB on a W12x58 Is Web Stiffening required here? YES W12x65 1 point dwg P = 189,000 LB on a W10x33 Is web stiffening required here? YES
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ARC322 Homework 14 SOLUTION 2008 - ARC322 Homework #14 16...

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