The detail shows a cast-in-place reinforced concrete elevator pit integrated with a grade beam and a 12-inch floor slab. Key components include reinforcing steel bars (rebar), waterstops at construction joints, wall pilasters, a sump pit with a grate support, and waterproofing layers. Grid lines and clearance dimensions are clearly noted for structural alignment.
Text on the drawing
LAB L1 0' - 0" L K.5 TYP 3" CLR 12" MAT W/ #5 @ 12" O.C. T&B E/W, CENTERED 8" WALL w/ #5 @ 12" O.C. E/W, CENTERED TYP AROUND PIT PERIMETER EXCEPT GL L TYP 3" CLR MIN 12" SLAB w/ #5 @ 12" O.C. T&B E/W TYP 3" CLR MIN GRADE BEAM, REINF PER PLAN HOOK VERT BARS INTO BOT OF FOOTING, TYP TYP 3" CLR MIN WALL PILASTER w/ #6 BARS @ 12" O.C. E/W, 2 LAYERS BRBF COL BEYOND, SEE BRBF DETAILS Ls Ls GRATE AND GRATE SUPPORT OVER SUMP PIT BY OTHERS WATERPROOFING PER ARCH Ld WATER STOP, SEE ARCH WATER STOP AT CJ, SEE ARCH WATER STOP AT CJ, SEE ARCH
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