An HSS 3x3x1/4 hollow structural section features a welded plate cap at the top and connects via a 3-inch by 3-inch by 1/4-inch angle measuring 0 feet 9 inches long secured with two 5/8-inch diameter bolts. A C15x33.9 channel member supports an 18-gauge 3-inch metal decking sized per structural requirements. A 1/4-inch by 3-inch plate measuring 0 feet 8 inches long connects the channel to a 4-inch by 4-inch by 1/4-inch angle at 48 inches on center. A second 1/4-inch by 3-inch plate measuring 0 feet 8 inches long joins the angle using two 5/8-inch bolts, with 1/4-inch typical fillet welds applied at each plate connection.
HSS 3X3X1/4 W/ WELDED PLATE CAP CL CL 1 1/2" 6" 1 1/2" L 3" X 3" X 1/4" X 0'-9" W/ (2) 5/8" DIAM. BOLTS C15X33.9 CL CL 2" 4" 2" 18 GA. 3" METAL DECKING PER STRUCTURAL TYP EA PLATE 1/4" 1/4" 1 1/4" L4X4X1/4 W/ CONN TO C15 @ 48" OC PL. 1/4"x3x0'-8 TO C15 PL. 1/4"x3x0'-8 TO L4X4 W/ (2) 5/8" BOLTS
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