Structural · S-A4FAD

CMU Wall Corners, Intersections and Jamb Details

Materials

Concrete Reinforced Concrete Masonry / CMU

Elements

Beams Walls Anchors / Embeds Reinforcing

Connections

Rebar Splice / Development

About this detail

Masonry reinforcement strategies are applied to concrete masonry unit wall corners, intersections with other walls, concrete jambs, and bond beam blocks. Vertical rebar is held in place using bar positioners or equivalents spaced at a maximum of two hundred bar diameters. Open end or speed blocks are used throughout with a one-half-inch minimum clearance typical. Corners and intersections incorporate two bars matching the typical vertical bar size with a minimum size of number four, with alternate hooks and development lengths of forty bar diameters or a minimum of two feet. Dowels match horizontal reinforcement for typical concrete masonry unit walls, and additional vertical bars match typical sizing. At four-inch high units only, two bond beam blocks are installed around the horizontal and vertical rebar.

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