Structural · S-P4V2K

Steel Beam to HSS Column Cap Plate Connection Details

Materials

Steel

Elements

Columns Beams Connections / Plates

Connections

HSS Connection Welded Connection Bolted Connection

About this detail

A steel beam frames into a hollow structural section steel column utilizing a half-inch thick steel cap plate matching the beam width. The cap plate is secured to the hollow structural section steel column with a one-quarter-inch fillet weld on three sides. The steel beam attaches to the cap plate using four three-quarter-inch diameter ASTM A307 bolts, typically detailed with one-quarter-inch stiffener plates on each side of the web welded on three sides. Plan and elevation views provide minimum edge distances, bolt spacings, and centerline alignments for both connection configurations.

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