Structural · S-6ES47

Post-Tensioned Concrete Slab Closure Strip Connection

Materials

Concrete

Elements

Floors / Slabs Waterproofing / Flashing Anchors / Embeds

Connections

Base Plate / Anchorage Rebar Splice / Development

About this detail

A structural connection between post-tensioned concrete slabs utilizes a central concrete closure strip with three continuous number four top and bottom reinforcing bars providing a class B lap splice. The assembly incorporates typical tendon anchorages, number four hairpins in protective sleeves, and a one and a half by three inch shear key between anchors. The joints are finished with a three-eighths inch v-groove and flexible sealant. Shoring must be retained beneath the slabs until the non-shrink concrete in the closure strip achieves seventy-five percent of its specified strength, with a mandatory forty-five day waiting period for concrete shrinkage prior to pouring the strip.

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