Structural · S-5BBAR

Reinforced Concrete Opening Rebar Detail

Materials

Reinforced Concrete

Elements

Reinforcing Roof / Floor Openings

Connections

Rebar Splice / Development

About this detail

Reinforced concrete openings require specific rebar placement consisting of two number five bars above and below the opening extending forty bar diameters beyond the edge, alongside two number five bars on each side extending forty bar diameters beyond the edge. One number five by four foot diagonal bar is centered at each corner of all openings typical. Unscheduled openings exceeding detailed dimensions receive reinforcement per detail two on sheet S222. When rebar cannot extend forty bar diameters beyond the opening, the bar extends the maximum available distance and terminates with a standard hook while maintaining a one foot six inch minimum edge distance from the opening to the nearest panel edge.

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