Concrete-filled steel pan treads with a slip-resistant finish and radius nosing sit above slanted steel risers welded to the tread pans and painted. A steel channel stringer supports the stair assembly and fastens to the floor via a structural steel angle welded to the stringer. An anchor bolt embedded in the concrete slab anchors the stringer assembly at the base.
ANCHOR BOLT - REFER TO STRUCTURAL STEEL ANGLE WELDED TO STRINGER. FASTEN STRINGER TO FLOOR - REFER TO STRUCTURAL CHANNEL STRINGER - REFER TO STRUCTURAL 1" 2" SLANTED STEEL RISER WELDED TO TREAD PAN, PAINTED 4.9 to 7" 125 to 180mm CONCRETE FILLED STEEL PAN TREAD w/ SLIP-RESISTANT FINISH RADIUS NOSING -PROVIDE A RADIUS OR A BEVEL BETWEEN 6 mm AND 10 mm - IN HORIZONTAL DIMENSION - ON ALL RISER NOSINGS AS PER 3.4.6.8.(8)(a)
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