The assembly incorporates a 2-hour fire-rated shaft wall adjacent to an elevator shaft, a furring wall, and a concrete wall supporting a steel stair. Stair pressurization provisions are detailed at the partition junction relative to Lower Level 1 at elevation 59'-3".
LOWER LEVEL 1 59' - 3" STAIR 1 ELEVATOR D FURRING WALL CONCRETE WALL STEEL STAIR 2-HR FIRE RATED SHAFTWALL STAIR PRESSURIZATION
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