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Extracted text: 3.6-5 Use load and resistance factor design and select an American Standard Channel shape to resist a factored tensile load of 180 kips. The length is 15 ft, and there will be two lines of s-in. diameter bolts in the web, as shown in Figure P3.6-5. Estimate the shear lag factor U to be 0.85. (In a practical design, once the member and bolt layout are selected, the value of U could be computed and the member design could be revised if neces- sary.) Use A36 steel. Bolt lines FIGURE P3.6-5