Structural · S-BHVBQ

Rooftop Condenser Support Frame Steel Connection

Materials

Steel Metal (misc.)

Elements

Roofs Floors / Slabs Decks

Connections

Welded Connection Bolted Connection

About this detail

A structural steel rooftop equipment support frame is detailed, bearing on W27x beams over a concrete slab and metal roof deck. Hollow structural section columns of size HSS5.000x0.312 connect to the roof framing below using a 1/2-inch thick base plate secured with four 1/2-inch diameter A235-X high-strength bolts. At the upper frame connections, a W12x galvanized beam connects to the HSS column using a 3/8-inch by 6-1/2-inch top and bottom plate, supplemented by a 1/4-inch plate and three 1/2-inch diameter A325-SC high-strength bolts. A complete joint penetration weld with a backgouge connects the angle to the flange where indicated. The condenser unit secures to the frame using a minimum of ten 1/2-inch diameter galvanized machine bolts, five per side.

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