Structural · S-FENA2

CMU Wall to Steel Deck Top of Wall Lateral Bracing Connection

Materials

Concrete Steel Masonry / CMU Metal (misc.)

Elements

Beams Walls Decks Bracing Anchors / Embeds

Connections

Bracing Connection Bolted Connection Embed Plate

About this detail

A one-inch gap is provided between the top of the concrete masonry unit wall and the underside of the concrete-filled metal deck, filled with a compressible material. The wall is laterally anchored to a structural steel wide-flange beam using angle sections placed at each end of the wall and at forty-eight inches on-center maximum intermediately. Condition B incorporates an L6x6x1/2 by one-foot two-inch long angle, or an L8x6x1/2 by one-foot two-inch long long-leg-horizontal angle for gaps greater than four inches, secured with plate washers, seven-eighth-inch diameter anchor bolts with nut and jam nut, and a kicker brace welded with a three-sixteenth-inch fillet weld on three sides. Condition A utilizes an L8x4x7/16 by one-foot six-inch long angle on both sides fastened with two one-half-inch diameter expansion anchors at twelve inches on-center with three-and-one-quarter-inch embedment, along with three-and-one-half by three-and-one-half by three-eighth-inch plate washers. Two continuous number four reinforcing bars are placed at the top of the masonry wall, supplemented by number four bars at four-foot-zero-inch minimum lengths at each anchor bolt and angle location.

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