An MC8x20 channel stair stringer frames into a supporting structural steel floor beam utilizing a type 'BA' connection with horizontal long slot holes, welded with quarter-inch fillet welds. A custom shaped piece cut from a C12x25 channel transitions to the floor assembly alongside a half-inch closure plate. A metal deck with concrete fill terminates at the beam with quarter-inch fillet welds, and all exposed plate projections are ground smooth.
2'-0" MAX. S.A.D. ℄ BEAM TYPE 'BA' CONN. PER 8/S5-00 WITH HORIZ. LONG SLOT HOLES PIECE CUT FROM C12x25 1/4 FLOOR METAL DECK w/ CONC. FILL CLOSURE PL. 1/2 1/4 1/4 P.P & GRIND SMOOTH, TYP. 1/4 1/4 P.P & GRIND SMOOTH, TYP. MC8x20 C12 3 S7-31
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