Structural · S-8GXBE

Typical Opening in Slab-On-Grade

Elements

Beams Floors / Slabs Foundations / Footings Reinforcing Roof / Floor Openings

Connections

About this detail

A pipe sleeve or opening occurs below the bottom reinforcement of a concrete slab-on-grade. The assembly requires number four diagonal trim bars placed at the corners of the opening, with two number four trim bars typically positioned along each side unless typical slab reinforcing is cut. Additional top bars matching the size and quantity of interrupted bars are provided at lap splices. Grade beam stirrups are spaced at four inches on center along the length of the splice, with two additional shear stirrups added on each side of the sleeve. Uninterrupted bottom bars consist of number five bars at twelve inches on center with a minimum of two bars unless otherwise noted.

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