Architectural · A-647Q8

Suspended Grid Ceiling Bracing Assembly

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Seismic bracing assembly for a suspended acoustical ceiling grid, featuring a central compression strut and diagonal bracing wires. Twelve-gauge vertical hanger wires are spaced at four feet on center each way, secured with a minimum of three tight turns in three inches at both ends. Twelve-gauge bracing wires are installed at a maximum forty-five-degree angle and spaced twelve feet by twelve feet on center, anchored with a minimum of four tight turns in one-and-one-half inches at both ends connected to main runners. The compression strut is positioned within two inches of the bracing wires and cross runner, and the top attachment must support four times the weight of the strut without replacing the hanger wires. Main runners and cross runners intersect to form the grid network, with specific referencing notes directing to structural attachment details.

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