This assembly secures a five-inch by two-inch hollow structural section mullion to a concrete vestibule slab. The base connection consists of a one-quarter-inch by four-and-a-half-inch by six-inch steel base plate anchored by two three-quarter-inch by six-inch Titen HD heavy-duty screw anchors. A one-quarter-inch thick stiffener plate is welded between the base plate and the vertical face of the hollow structural section. The top of the hollow structural section is finished with a one-quarter-inch cap plate. All steel components and fasteners are specified to be painted black to match the adjacent curtain wall mullions.
1 1/2" 3" 4 1/2" HSS 5 X 2 X 3/8 W/ 1/4" CAP PLATE (2) 3/4" X 6" TITEN HD 1/4" X 4 1/2" X 6" PLATE 1/4" X 4 1/2" X 6" STIFFENER PLATE ALL STEEL AND FASTENERS PAINTED BLACK TO MATCH CURTAIN WALL MULLIONS CONCRETE VESTIBULE 2" 6 A602 SIM
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