Structural · S-SQY44

Steel Beam Connection to Existing Concrete Slab Opening

Materials

Concrete

Elements

Floors / Slabs Decks Anchors / Embeds Roof / Floor Openings

Connections

Embed Plate

About this detail

Steel beam framing conditions occur at a new slab opening in an existing concrete floor assembly. Channel headers such as C10 members connect to the existing steel beams using welded plate connections and 3/8-inch by 4-inch by 6-inch plates with fillet welds top and bottom. A one-inch maximum gap is detailed at the opening edge. Additional framing bears on existing concrete-encased steel beams with thickened concrete matching the top of the existing slab and aligned with the concrete face. No. 4 epoxy dowels at two feet long provide a four-inch embedment into the existing concrete slab alongside concrete slab on steel deck construction.

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