Structural · S-MHA4J

BRBF Column and Base Plate Connection Strong Axis

Materials

Concrete Reinforced Concrete Steel Masonry / CMU

Elements

Columns Anchors / Embeds Connections / Plates Reinforcing

Connections

Braced Frame Connection Gusset Plate Base Plate / Anchorage Welded Connection Embed Plate

About this detail

A buckling-restrained braced frame column base plate connection on the strong axis is anchored to a concrete foundation. The assembly includes a base plate, a gusset plate sized per the brace manufacturer, and a heavy embed plate measuring one inch by twenty-seven inches by two feet eight inches, centered on the column. The embed plate is reinforced below with twenty number five by two-foot welded rebars spaced at seven inches each way. The column flanges are welded with complete joint penetration welds per AWS D1.8, and the web features five-sixteenths-inch fillet welds. Square washer plates measuring one by five inches in Grade 50 steel with standard holes are provided per AISC recommendations at typical locations. A two-inch diameter grout hole is included in the base plate above a layer of grout over the embed plate, with a three-eighths-inch shear plate welded at the edge.

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