Architectural · A-GNCSA

Stair Pressurization Shaft Wall and Floor Penetration Detail

Materials

Concrete Steel

Elements

Beams Stairs Floors / Slabs Decks

Connections

HSS Connection

About this detail

A two-hour fire-rated stair pressurization shaft assembly at Level 5, located at an elevation of 60 feet and 0 inches. The construction incorporates a concrete slab on steel deck supported by hollow structural section beams. The surrounding walls and partitions consist of two-hour rated assemblies as scheduled, protected with two-hour rated spray-applied fireproofing on the structural steel. Stair pressurization ducts pass through the shaft enclosure as coordinated with mechanical drawings.

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