Structural · S-3NE4G

Mechanical Unit Support Up to 4000 Lbs

Materials

Steel

Elements

Beams Roofs Decks Bracing Site / Paving Roof / Floor Openings

Connections

Bracing Connection Welded Connection Deck Attachment

About this detail

Framing connections for mechanical unit supports and roof deck openings on steel roof joists. Support angles including L6x4x5/16 and L3x3x1/4 profiles frame the opening, with vertical legs notched and horizontal legs extended to the full width of support with a 4-inch minimum. Hollow structural section members sized HSS1-1/2x1-1/2x3/16 are placed beneath the deck below mechanical curbs, using continuous lengths when parallel to the support angle or 6-inch lengths when perpendicular. Additional angle bracing using L2x2x1/4 extends from angle bearing to bottom chord panel points when required.

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