Structural · C-P3JMZ

Buckling-Restrained Braced Frame Column Base Plate Connection

Materials

Concrete Steel Masonry / CMU

Elements

Columns Anchors / Embeds Connections / Plates

Connections

Base Plate / Anchorage Embed Plate

About this detail

A structural steel column base plate connection anchored to a concrete footing with heavy anchor rods and stiffener plates. The assembly utilizes a thick base plate with multiple stiffener plates welded to the column flanges and web using five-sixteenths inch fillet welds on opposing edges. Three-inch diameter anchor rods pass through four-and-one-quarter-inch maximum base plate holes and feature tight double nuts secured with six-inch by six-inch by one-inch Grade 50 plate washers. A four-inch maximum layer of non-shrink grout sits beneath the base plate over the top of the footing. Additional footing reinforcement is provided per Plan B-M, with varying anchor embedment depths ranging from two feet to three feet depending on location.

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