The detail illustrates a poured concrete tread and stair riser supported by a steel bent plate stringer, which is coped and welded to a structural steel beam. A ledger angle is embedded at the edge of the concrete landing slab over a 3-inch metal deck, creating a nosing detail at the floor level. The assembly integrates cast-in-place concrete with structural steel framing for a typical intermediate floor stair landing.
LANDING AT FLOOR: CONCRETE SLAB OVER 3" MTL DECK LEDGER ANGLE BEAM PER STRUCTURAL STEEL PLATE STRINGER COPED AND WELDED TO BEAM NOSING STEEL BENT PLATE STRINGER AND RISER POURED CONCRETE TREAD 7" MAX RISER HEIGHT 1 1/2" F4
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