Concrete over steel deck stair landings frame into steel tube stair stringers using continuous angle supports welded with three-sixteenths inch welds at twelve inches typical. The left detail shows deck flutes perpendicular to the stringer with a continuous three-by-three by quarter-inch angle support. The right detail shows deck flutes parallel to the stringer with a continuous five-by-three by quarter-inch angle support labeled long leg horizontal. Both conditions feature field welds securing the deck assembly to the structural steel tube stringer beam.
PERPENDICULAR TO DECK FLUTES PARALLEL TO DECK FLUTES CONC OVER STEEL DECK STEEL TUBE STAIR STRINGER/BEAM L5x3x1/4 x CONT (LLH) CONC OVER STEEL DECK STEEL TUBE STAIR STRINGER/BEAM L3x3x1/4 x CONT 3/16 3-12 TYP 3/16 3-12 TYP
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