An exterior steel stair framing plan details the structural steel stringers and connections tied into a concrete warehouse structure. The stair stringer is supported by a three-eighth-inch by twelve-inch by one-foot-zero-inch steel plate secured with four three-quarter-inch-diameter Hilti Kwik Bolt TZ anchors at an eight-inch gauge. An intermediate connection utilizes a one-quarter-inch by four-inch by zero-foot-nine-inch plate with three five-eighth-inch-diameter machine bolts at a three-inch gauge. A one-quarter-inch fillet weld connects the steel components as indicated in the enlarged connection detail. Guardrail construction and panel reinforcement follow architectural specifications and reference details.
PL 1/4"x4"x0'-9" W/ (3) 5/8"Ø MB @ 3"GA PL 3/8"x12"x1'-0" W/ (4) 3/4"Ø HILTI KWIK BOLT TZ ANCHORS (ESR-1917) @ 8"GA 7 EXTERIOR STEEL STAIR PLAN N.T.S. 10 - WAREHOUSE TYP GUARDRAIL SEE ARCH STRINGER SEE PLAN SEE ENLARGED DETAIL X-X- 9B - 11A - 6 SD2 SEE FOR PANEL REINF 5" STRINGER PER PLAN 1/4 3" 7" ENLARGED X-X
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