Structural · S-NQZSB

Typical Reduced Beam Section Moment Connections

Materials

Steel

Elements

Columns Beams Connections / Plates

Connections

Base Plate / Anchorage Welded Connection

About this detail

Moment frame beam-to-column connections are detailed for three distinct geometrical conditions including same beam depths, different beam depths, and top of column situations. The assemblies incorporate complete joint penetration groove welds at the beam flanges and webs, web doubler plates attached with plug welds when plate thickness is less than three-quarters of an inch, and continuous flange plates aligned per moment frame elevations. Special protected zones are designated adjacent to the beam-column junctions. Column cap plates and base connections are detailed for multi-tier framing coordination.

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