Structural · S-NWBEY

Typical Grade Beam Penetration Detail

Materials

Concrete Reinforced Concrete

Elements

Beams Foundations / Footings Reinforcing Roof / Floor Openings

Connections

Braced Frame Connection

About this detail

Pipe penetrations through a reinforced concrete grade beam feature supplementary framing and reinforcing bars. Closed top stirrups and closed bottom stirrups wrap the main longitudinal reinforcement, supplemented by diagonal reinforcing bars at a maximum spacing of two feet on center. Additional stirrups sized to match interrupted stirrups are placed at a rate of one half the total interrupted count plus one on each side of the penetration. Number five bars at twelve inches maximum on center provide transverse reinforcement along the top and side faces. The assembly accommodates maximum eight-inch diameter pipe penetrations located within specified dimensional clearances from column centerlines.

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