Structural · S-4M6J2

Beam to Column Moment Connection Continuity Plate Detail

Materials

Steel

Elements

Columns Beams Connections / Plates

Connections

Moment Connection Welded Connection

About this detail

A structural steel moment connection between a frame beam and frame column features top and bottom continuity plates on both sides. The continuity plate thickness matches the beam flange thickness with a three-quarter-inch minimum, aligned with the column flange. Complete joint penetration welds connect the plates to the column flange, leaving the backing in place with a five-sixteenth-inch fillet weld underneath, and complete joint penetration welds tie into the column web. A double plate is included on the exterior column face where required by the buckling-restrained braced frame manufacturer. Weld tabs are prohibited adjacent to the column web and flange juncture per AISC 358-16 Section 3.6.

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