Structural · S-GCC7D

Brace Frame Column Splice Connection

Materials

Steel

Elements

Columns Bracing

Connections

Bracing Connection Welded Connection Bolted Connection Rebar Splice / Development

About this detail

A column splice connection for steel brace frames joins upper and lower column segments with complete joint penetration welds at the flange junction. Temporary channels of varying sizes—such as C6x10.5 for W8 columns, C7x12.3 for W10, C9x15 for W12, and C15x33.9 for W33 and W36 sections—are bolted to each side with three-quarter-inch diameter A325 bolts and two washers each. The installation sequence requires welding the column flanges first, removing the channels, and then welding the column web. Ceramic backing plates may be used with an approved procedure qualification record, and an optional lifting hole is provided four feet above the top of steel at the contractor's option with engineer approval.

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