Structural · S-8BDK7

Post-Tensioned Slab Connection at Interior Concrete Wall

Materials

Concrete Steel

Elements

Walls Floors / Slabs Anchors / Embeds Reinforcing

Connections

Welded Connection Rebar Splice / Development Embed Plate

About this detail

A post-tensioned concrete slab bears on an interior concrete wall through a continuous structural steel angle connected to an embedded steel plate. The continuous angle, sized L4x4x1/4, is welded to a 3/8-inch by 6-inch by 2-foot embed plate with four 3/4-inch diameter by 7-inch headed stud anchors spaced at 1 foot on center, with the contractor retaining the option to split the plate into two sections. Two layers of building paper or bond breaker are placed between the slab and wall, and a 5/16-inch fillet weld secures the assembly after sixty days. Vertical wall reinforcement consists of #7 deformed bar anchors at 6 inches on center, staggered where angle embeds occur on each side, with a lap splice length per schedule. A post-tensioned beam blockout is formed and poured after sixty days, continuing beam top and bottom bars, stirrups, and additional reinforcement per plan into the blockout. A surface screen is added to roughen the construction joint between the wall and the subsequent concrete placement.

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