Structural · S-HA2ZH

Braced Frame Column Base Plate Anchorage Detail

Materials

Concrete Reinforced Concrete Steel Masonry / CMU

Elements

Columns Floors / Slabs Foundations / Footings Arches Bracing Anchors / Embeds Connections / Plates Reinforcing

Connections

Braced Frame Connection Gusset Plate Base Plate / Anchorage Bracing Connection Bolted Connection Rebar Splice / Development Embed Plate

About this detail

A steel column base plate anchorage connection is seated on a reinforced concrete footing. The assembly features a two-inch-thick base plate secured by twelve total one-and-three-quarter-inch-diameter high-strength anchor bolts and a two-and-a-half-inch maximum non-shrink grout layer. A shear lug measuring two-and-a-quarter by six inches is welded to the underside of the base plate. Gusset plates connect to the column and are flanked by one-inch asphalt boards on each side, with buckling-restrained braces provided by others. Transverse and longitudinal stiffener plates match the column flange thickness and are welded using complete joint penetration and fillet welds as indicated. Two-inch-diameter grout holes are located four inches from the column centerline each way.

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