Structural · S-3XGTA

Typical Column Splice - Non-Seismic Force-Resisting System Columns

Materials

Steel

Elements

Columns

Connections

Welded Connection Bolted Connection Rebar Splice / Development

About this detail

Paired channels and high-strength bolts connect two axially aligned steel columns of nominally the same depth with channel sections placed on each side of the web, shimmed as required. Each channel is fastened with eight three-quarter-inch diameter A325 bolts with two washers each, utilizing standard holes in the column and oversized holes in the channel, with one-inch diameter A490 bolts required for columns weighing over 160 pounds per foot. Partial joint penetration welds are specified at each flange according to Table A, while an optional shop weld may replace the bottom four bolts when a single channel is used. An optional contractor-provided lifting hole with a maximum two-and-one-half-inch diameter is centered in the channel. Additional criteria specify that two channels are required on each side of the web for columns over thirty feet long or exceeding 100 pounds per foot, with complete joint penetration welds mandated where the minimum flange thickness is one-half inch and less.

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