Structural · S-8EGKN

Bond Beam and Center Core at Existing Masonry Wall

Materials

Concrete Timber / Wood Masonry / CMU Brick

Elements

Beams Walls Reinforcing Roof / Floor Openings

Connections

Rebar Splice / Development

About this detail

A fourteen-inch by fourteen-inch concrete bond beam is centered over an existing masonry wall, reinforced with number six center core reinforcing with hooked top, number four bars at each corner, and number three stirrups spaced at twelve inches on center. A four-inch diameter center core passes down through the wall, with location adjusted along the length of the wall by six inches or more to provide a minimum two-inch clear edge of the core to existing joists. Existing joists bear beyond, noted as continuous over the existing masonry wall but capable of stopping on the wall, with blocking installed prior to center coring. Plywood sits on framing per plan, and existing wall top is thoroughly cleaned of loose mortar, debris, and other material to sound conditions with loose bricks removed and concrete extended to fill voids.

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