Structural · S-TVDKD

CMU Wall Perpendicular to Steel Beam or Deck Connection Details

Materials

Steel Masonry / CMU

Elements

Beams Walls Roofs Floors / Slabs Decks Bracing Anchors / Embeds

Connections

Bracing Connection Expansion / Slip Connection

About this detail

These structural details illustrate lateral bracing connections for concrete masonry unit walls intersecting steel framing or roof decks perpendicularly. The top detail secures a masonry bond beam beneath a wide-flange beam or steel joist using structural angles on each side of the wall, welded with three-sixteenths inch fillet welds and maintaining a one and one-half inch clearance. The middle detail incorporates a steel angle brace connecting the top of the wall back to the underside of the structural steel beam, anchored with two one-half inch by four-inch expansion anchors in vertical long slotted holes spaced at eight-inch gauges. The bottom detail fastens the concrete masonry unit wall to a roof deck using three-inch by one-quarter inch plates staggered at four-foot intervals, supplemented by two number twelve self-drilling screws at each low flute of the roof deck.

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