Structural · S-WJPDG

Bolted Beam to Column Moment Connection Detail

Materials

Steel

Elements

Columns Beams Connections / Plates

Connections

Moment Connection Welded Connection Bolted Connection

About this detail

A standard steel beam-to-column moment connection incorporates top and bottom connection plates welded to the column flange and web. The minimum connection plate thickness is determined per the standard bolted beam connection schedule plus one-sixteenth of an inch, with the number of bolts also governed by the schedule. Fillet welds connect the plates to the column faces, with specific weld size adjustments required for narrower columns. An optional three-quarter-inch gap may be utilized for columns with a flange width equal to or greater than twelve inches. The assembly includes specific restrictions for column sizes and geometry, such as excluding columns with flange widths under seven and a half inches.

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