Mechanical · M-Z6NSV

Mechanical Equipment Support and Seismic Sway Bracing at Roof Framing

Materials

Steel Timber / Wood

Elements

Beams Roofs Decks Bracing Connections / Plates

Connections

Bracing Connection Bolted Connection

About this detail

The assembly suspends mechanical services from roof framing using a Unistrut P1000T slotted channel secured to a structural steel beam with Unistrut P2785 beam clamps. A three-eighths-inch hanger rod drops from the channel, reinforced with a rod stiffener. Lateral seismic restraint is provided by a three-sixteenths-inch steel cable sway brace attached to four-by-six wood blocking via a half-inch-diameter through-bolt, bent plate, pin shackle, and heavy wire rope thimbles secured with two U-bolt clamps at each cable end. An additional three-and-a-half by two-and-a-half by three-eighths-inch steel angle with the long leg horizontal is bolted to the center of the wood blocking using two half-inch-diameter by five-inch-long through-bolts with nuts and lockwashers.

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