Architectural · A-WK8YM

Rated Partition Head to Structural Metal Deck

Materials

Concrete Steel Cold-formed Steel Timber / Wood Metal (misc.)Gypsum / Drywall

Elements

Partitions Decks Anchors / Embeds

Connections

Deck Attachment Embed Plate

About this detail

A cold-formed steel framed partition head intersects a concrete fill over metal deck with sprayed-on fireproofing. The assembly incorporates a 20-gauge minimum metal top runner track with 2-1/2 inch long slotted legs, attached to 18-gauge metal Z-clips spaced at 16 inches on center using number 8 sheet metal screws. The Z-clips are secured to the metal deck with a minimum of one 1/8-inch power-driven fastener at each end with a 1-inch minimum embedment. A deflection gap is provided at the top of the gypsum board, which stops a minimum of 1/2 inch below the metal top runner track and is attached only to the metal studs. Acoustic insulation is installed within the stud cavity as scheduled, and continuous 3/4-inch by 1-inch by 25-gauge metal angles with 3.4-pound galvanized expanded metal lath are attached with fasteners at 16 inches on center.

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