Architectural · A-XXNBD

Seismic Joint Cover at Top of Gym Stairs

Materials

Concrete Steel Cold-formed Steel Metal (misc.)

Elements

Beams Walls Stairs Railings / Guards Floors / Slabs Decks Expansion / Control Joints Waterproofing / Flashing Anchors / Embeds Connections / Plates Reinforcing

Connections

Embed Plate Expansion / Slip Connection

About this detail

A seismic joint cover assembly located at the top of gym stairs features a structural concrete slab over metal decking supported by a structural steel beam and bent plate. The joint incorporates compressible filler and sealant at the edge of the deck, alongside a twenty-gauge brake metal trim with a factory finish and a steel bar embedded into the deck down to a plate. A drainage and waterproofing assembly is integrated at the slab edge, adjacent to a furring wall and hat channel. The adjacent metal guardrail consists of three-quarter-inch by two-inch flat bars at the top, intermediate, and bottom rails. Below, the concrete stair on grade ties back to a support of excavation wall with a half-inch minimum compressible fill.

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