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Unformatted text preview: welds. Make sure the slenderness ratio does not exceed 300. Problem 3: (25%) A 29-feet long column carries a 75 kips dead load and a 175 kips live load. It is in a braced frame, with both top and bottom pinned, and has an additional lateral support at mid-height in the weak direction. 1. Select the lightest A572 Gr. 50 W-section. 2. Select the lightest A572 Gr. 65 section. Problem 4: (25%) Column A-B is a W14x176 A572 Gr. 50 section. It carries a 385 kip dead load and a 1125 kip live load. It is a part of an unbraced frame, shown. In the plane perpendicular to this frame, the column bends about its weak axis and is supported laterally at points A, B, C and at mid-story-heights. Is such column A-B adequate according to the AISC LRFD Code? 40' 40' 40' 14' 14' W16x89 beams W16x89 beams W14x176 A572 Gr 50 column A B C W14x176 A572 Gr 50 column...
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- Spring '09
- Column, Tensile strength, Buckling, Dead and live loads, Compression member, kips