A raised concrete floor assembly is supported by light-gauge steel framing over a new or existing concrete slab on grade. The raised floor consists of two and one-half inches of hardrock concrete over a two-inch by twenty-gauge W2 formlok steel deck, totaling four and one-half inches in thickness with welded wire fabric reinforcement placed one inch clear from the top. The steel deck bears on 362S137-43 steel studs spaced at sixteen inches on center, fitted with 362T125-43 unpunched tracks attached top and bottom with two number 310 screws per stud. The bottom track is anchored to the five-inch minimum new or existing concrete slab on grade using Hilti X-U zero-point-one-hundred-fifty-seven-inch diameter by one-inch minimum embedment shot pins. A two-foot vertical clearance separates the top of the lower slab from the underside of the raised floor deck.
RAISED FLOOR SEE NOTE 1 MIN. 5" 2' - 0" NEW OR EXIST. CONC. SLAB ON GRADE HILTI X-U 0.157" DIA.x1" MIN. EMBED SHOT PINS 362S137-43 STEEL STUDS AT 16" OC 362T125-43 UNPUNCHED TRACK WITH 2-310 SCREWS TO STUDS, TYPICAL TOP AND BOTTOM NOTES: 1. Raised floor shall be 2 1/2" hardrock concrete over the flutes of 2" x 20 ga. W2 formlok steel deck by Verco or approved equal. Total Thickness = 4 1/2" reinforce concrete with 6x6- W1.4xW1.4 WWF placed 1" clear from top of slab. Attach with #10 self drilling screws as follows: a. Perpendicular bearings: At each Valley b. Parallel bearings: At 12" oc SEE PLAN
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