Structural · S-8E645

Concrete Beam Sleeve Penetration and Reinforcement Detail

Materials

Concrete

Elements

Columns Beams Floors / Slabs Expansion / Control Joints Drainage Reinforcing Roof / Floor Openings

Connections

Rebar Splice / Development

About this detail

A structural assembly for a concrete beam and slab penetrated by a drain sleeve incorporates three additional matching stirrups spaced at three inches on center on each side of the sleeve, alongside three number six by five-foot longitudinal bars placed on each side of the opening. For sleeves eight inches in diameter or larger, two J-hook bars are provided at six inches on center on each side of the sleeve matching the typical beam stirrup size. Beam penetration must remain under twenty-five percent of the beam width, located within the middle third, and is prohibited in beams twelve inches wide or less.

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