Structural · S-565V3

Concrete Slab Sleeve Spacing and Trim Reinforcement Plan

Materials

Concrete Reinforced Concrete Aluminum

Elements

Columns Floors / Slabs Anchors / Embeds Reinforcing

Connections

Embed Plate

About this detail

This structural detail provides installation guidelines for mechanical and electrical sleeves passing through concrete floor slabs. The plan details minimum clear spacing requirements between sleeves defined as diameter D or four inches minimum, with a maximum of four sleeves per group and eighteen inches minimum spacing between groups. Additional trim reinforcement consisting of number five top and bottom bars on all sides is required around groups of five or more sleeves or where minimum spacing is not met. General notes prohibit embedding aluminum materials in concrete, locating sleeves within forty-eight inches of columns without engineer approval, or interrupting typical slab reinforcement, while requiring a two-inch minimum clearance from all post-tensioning tendons.

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