Architectural · A-TWSDD

1 Hr Shaftwall Enclosure

Materials

Timber / Wood Metal (misc.)Gypsum / Drywall

Elements

Walls Partitions Floors / Slabs Anchors / Embeds

Connections

Bolted Connection Embed Plate

About this detail

This one-hour rated shaft wall assembly is anchored to the concrete slab overhead using a minimum 3/8-inch expansion bolt at twenty-four inches on center with a two-and-a-half-inch minimum embedment and edge distance. A thirty-three mil minimum metal top runner track secures to the structure and attaches to each twenty-four-inch on center thirty-three mil minimum metal C-H stud with at least two fasteners meeting specified shear and withdrawal resistance requirements. The partition incorporates one-inch gypsum shaft liner board, sound attenuation fire blanket insulation, and a single layer of five-eighths-inch Type C gypsum wallboard extending tight to the structure. Bottom framing utilizes a thirty-three mil minimum metal J runner track attached with fasteners at twenty-four inches on center maximum with a 300-pound minimum shear value, finished with a metal corner bead.

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