Structural · S-BBZPR

Steel Beam to Column SFRS Collector Connection

Materials

Steel Metal (misc.)

Elements

Beams Roofs Decks

Connections

Welded Connection Bolted Connection

About this detail

A steel beam connects to a steel column acting as a seismic force-resisting system collector. Steel beams frame into the column web via a shear plate fastened with three seven-eighths inch diameter erection bolts, reduced to two bolts for W8 or W10 shapes. The shear plate thickness equals the beam web thickness plus one-eighth of an inch, welded to the beam web with a five-sixteenths inch fillet weld on three sides. A column cap plate welded to the column web matches the greater beam flange thickness plus one-eighth of an inch using fifty KSI steel, joined with complete joint penetration welds at the beam flanges and weld access holes. Stiffener plates matching the cap plate thickness and material grade are welded to the column web with five-sixteenths inch fillet welds on three sides, and column flanges receive three-eighths by five-sixteenths inch bevel welds. Metal roof or floor deck bears across the top of the assembly.

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