Structural · S-SM3K3

Headed Bolt in CMU Wall

Materials

Concrete Masonry / CMU Glass / Glazing

Elements

Beams Walls Arches Expansion / Control Joints Anchors / Embeds Roof / Floor Openings

Connections

Bolted Connection Embed Plate

About this detail

Hex-headed ASTM A307 bolts are grouted in place within the top and face of a grouted concrete masonry unit wall. The assembly includes solid grout all around the headed bolt, with specific minimum horizontal and vertical embedment depths governed by an accompanying bolt embed schedule for sizes ranging from one-half inch to seven-eighths inch diameter. The bolt installed in the face of the wall requires a minimum opening of the bolt diameter plus two inches in the masonry face, with sufficient bolt extension to fully engage the nut and washers. A separate plan view details a control joint within the masonry wall featuring stacked bond at cells adjacent to the joint, vertical reinforcing bars on each side, backer rod, and sealant per architectural requirements. Horizontal reinforcing bars terminate at the joint except for chord bars and lintel bars, and a structural note prohibits placing face bolts within twelve bolt diameters of openings or wall ends without structural engineer of record approval.

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