A channel stringer connects to the floor slab datum through an angle bracket welded to the stringer base plate. The L3x3x3/8-inch by 1-foot angle is secured to the concrete floor slab with two 3/4-inch diameter by 4-inch embedment expansion anchors spaced at 5 inches gauge. A 3/4-inch diameter A325 bolt fastens through an 8-inch horizontal slot in the angle to allow for field adjustment.
C12 STRINGER SEE STAIR PLANS CTR OF BASE PL & STRINGER L3x3x3/8x1'-0" w/ (2) 3/4" Øx4"EMBED EXPANSION ANCHORS @5" GAGE FLOOR DATUM 3/4"Ø A325 BOLT IN 8" HORIZ SLOT IN ANGLE
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