Concrete built-up steps bear on a structural slab with underlying polystyrene insulation sized per schedule. The stair treads and risers incorporate typical concrete reinforcing steel with a two-inch cover and a four-inch typical curb detail. A keyed joint connects the stair assembly to the intersection of slabs and walls per standard details.
POLYSTYRENE PER "BU SLAB ON POLYSTYRENE SCHED" STRUC SLAB BUILT-UP STEPS 2" COVER, TYP 4" TYP KEYED JT PER "TYPICAL CONCRETE REINFORCING AT INTERSECTION OF SLABS AND WALLS" DETAIL, TYP 4" CURB PER "TYP CONC CURB DET", TYP REINF PER "BU SLAB ON POLYSTYRENE SCHEDULE", TYP SLAB THICKNESS PER "BU SLAB ON POLYSTYRENE SCHED" REINF PER "BU SLAB ON POLYSTYRENE SCHEDULE", TYP
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