Mezzanine floor steel at elevation 11'-7" featuring a lightweight concrete slab over a composite metal deck. The assembly includes W12x35, W24x55, and W8x18 steel framing members with W12x35 brackets supporting W21 beams spaced at four equal intervals of 4'-6". Reinforcing consists of number 4 rebars at 24 inches on center with a 1 1/4 inch clearance from the top of the slab to the edge of slab. The construction requires a 5 1/4 inch lightweight concrete slab or a 3 1/4 inch concrete slab over composite metal deck as specified in the general notes.
W12X35 W24X55 (32) W21's @ 4 EQ SPACES 4'-6" 2'-11" 2'-0" 1'-5 3/4" W24X55 4'-6" 7'-8" 9'-0" 7'-8" W12x35 BRACKET #4s @ 24" O.C. AT 1 1/4" CLR. FROM T/SLAB E.O.S. 1'-9 1/2" W8x18 (TYP) DECK 5
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