A stair landing connects to an HSS10x4x3/8 structural steel tube using a quarter-inch plate welded to the support. The landing structure incorporates an L6x4x3/8 angle member and a ten-gauge bent plate assembly. Stair treads are supported by typical L1-1/2x1-1/2x3/16 angles measuring eight inches long welded with three-sixteenth-inch fillet welds. All connections are detailed with quarter-inch fillet welds as indicated.
2" L1-1/2x1-1/2x3/16 x 0'-8" TYP 10GA BENT PLATE 1'-8" 1'-6" 2" 1/4" PLATE 2" 3" 6" LANDING L6x4x3/8 HSS10x4x3/8 CLR 1/4" 1/4 TYP 1/4 1/4 3/16 TYP
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