Architectural · A-AQS6D

Suspended Ceiling Seismic Joint Assembly

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This assembly details a seismic joint in a direct-hung suspended metal ceiling suspension system. The ceiling edge molding is attached with screws to one side only, allowing movement across the varying joint width of zero to one and one-half inches, with a clearance range up to four inches. Twelve-gauge primary hanger wires are spaced at four feet on center in both directions to support main runners and cross runners. Supplemental twelve-gauge hanger wires and slack wires are provided at all corners of light fixtures, HVAC devices, and access panels unsupported by main hangers, running from clamping devices to the structure.

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