Structural · S-3N66T

Special Force-Resisting System Collector Connector at Steel Column

Materials

Concrete Steel Metal (misc.)

Elements

Beams Roofs Decks

Connections

Welded Connection Bolted Connection Rebar Splice / Development

About this detail

A special force-resisting system collector connection frames steel beams into a steel column. The connection features a cap plate welded to the column web with a complete joint penetration weld at the beam flange and a five-sixteenths inch fillet weld on three sides. Shear plates connect the beam web using three seven-eighths inch diameter erection bolts, reduced to two bolts for W8 or W10 shapes. Plate thicknesses are sized relative to the beam web and flange thicknesses plus one-eighth inch using 50 ksi steel. Stiffener plates are welded to the column with five-sixteenths inch welds on three sides, incorporating a weld access hole and bevel details at the column flange.

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