Structural · S-87CQ2

Strong Axis Beam to HSS Column Moment Connection

Materials

Steel

Elements

Columns Beams Connections / Plates Reinforcing

Connections

Moment Connection Welded Connection Bolted Connection

About this detail

A strong axis beam-to-column moment connection utilizes Grade 50 flange plates matched or exceeding the thicker beam flange thickness plus one-half inch. The beam web connects via a standard bolted beam connection schedule, while top and bottom flanges incorporate complete joint penetration welds or alternatives as designated. Stiffener plates match the beam flange width and thickness, with backing bars removed, backgouged, and reinforced per AISC 358 Chapter 3 when members are designated as seismic force-resisting systems. Plate thickness is determined by the standard bolted beam connection schedule plus one-sixteenth of an inch.

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