Structural · S-ZJV9G

Roof Framing and Cantilever Detail at Hollow Structural Section Column

Materials

Steel Cold-formed Steel Timber / Wood Metal (misc.)

Elements

Beams Roofs Arches Bracing Connections / Plates

Connections

HSS Connection Bracing Connection Bolted Connection

About this detail

A roof framing connection at a hollow structural section column and horizontal beam assembly. A steel joist with a five-inch deep joist seat frames over a continuous hollow structural section blocking element, featuring an extended joist seat to accommodate a cantilever condition. Channel outriggers size C8x11.5 are placed at each joist and infilled with metal studs, aligned with C6x13 channels. A C8x13.7 stub is centered at the top of steel elevation of the hollow structural section, while an L4x4x5/16 kicker angle ties back to a plate sized three-eighths by six by six inches. Connection clips include L4x4x3/8 by zero-dash-six angles centered at each joist fastened with two three-quarter-inch diameter high-strength bolts, and an L4x4x3/8 by zero-dash-eight clip angle secured with two three-quarter-inch high-strength bolts. Fillet welds of one-quarter-inch size are indicated typically across three sides where noted. Steel joists are specified to withstand an additional strength-level vertical wind load of two kips acting both up and down at each bracing location.

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