Structural · S-N7DDZ

Carried Column Cap Plate Connection to Supporting Beam

Materials

Steel

Elements

Columns Beams Connections / Plates

Connections

Welded Connection Bolted Connection

About this detail

A structural steel column rests on a horizontal beam supported by a three-quarter-inch thick cap plate sized one inch larger than the column or matching the beam flange width, whichever is greater. Four three-quarter-inch diameter A325 bolts secure the cap plate assembly. Two stiffener plates per side, with a thickness matching the column flange and a three-eighths-inch minimum, align with the column flanges and weld to the supporting beam with three-sixteenths-inch welds on three sides. Additional welds include quarter-inch fillet welds as indicated on the drawing, and all welding conforms to AISC specification section J2.

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