Structural · S-YNDBM

Steel Beam to Column Moment Connection with Stiffeners and Shear Tab

Materials

Concrete Steel Glass / Glazing Metal (misc.)

Elements

Beams Roofs Decks Connections / Plates

Connections

Welded Connection Bolted Connection

About this detail

A moment connection between steel beams and a steel column integrates upper and lower continuity stiffener plates welded to the column web and flanges. The beam flanges attach to the stiffener plates via complete joint penetration welds, utilizing standard weld access holes at the beam webs. Shear plates welded to the column web and stiffener plates connect to the beam webs using three-bolt clip angle assemblies on each side. A concrete slab over metal floor deck bears atop the steel framing, establishing the top of floor or roof level. Stiffener plate thickness equals the greater beam flange thickness plus one-eighth inch using 50 KSI steel, while plate B equals half the plate thickness plus one-sixteenth inch.

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