Structural · S-WJX7W

Bolted Buckling-Restrained Brace to Column Flange at Base

Materials

Elements

Columns Bracing Anchors / Embeds Connections / Plates Reinforcing

Connections

Gusset Plate Base Plate / Anchorage HSS Connection Bracing Connection Welded Connection Bolted Connection Rebar Splice / Development Embed Plate

About this detail

A buckling-restrained brace bolts to a gusset plate framing into a wide-flange steel column web and flange near the base. A horizontal double-angle strut intersects the column web, with typical stiffener plates welded to the column web using a five-sixteenths inch fillet weld. The gusset plate features a vertical extension welded full height, maintaining a typical two-inch gap and a three-inch clearance. An embed plate with a three-inch diameter centered air hole matches the base plate dimensions, secured by anchor rods with double nuts. Number four ties spaced at four inches on center enclose the bolts, with the first tie positioned two inches below the top of the foundation. At low footing conditions where dimension B exceeds eighteen inches, the gusset plate may terminate six inches below the bottom of the horizontal hollow structural section strut.

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