The stair stringer bears onto a concrete slab on grade and concrete footing sized per schedule. An L3x3x1/4 angle measuring zero feet four inches long connects the assembly using a three-quarter-inch diameter expansion bolt into a two-inch long-slotted hole. A quarter-inch fillet weld secures the connection.
L3x3x1/4 x 0'-4" WITH 3/4"DIA EXPANSION BOLT 1/4 CONCRETE SLAB ON GRADE, SEE PLAN STAIR STRINGER, SEE PLAN AND ARCH INTO 2" LONG-SLOTTED HOLE CONCRETE FOOTING, SEE PLAN AND SCHED FTG DEPTH FOOTING WIDTH SEE SCHEDULE SEE SCHEDULE
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