This assembly details the transition between a steel stair run and an intermediate landing. The stair treads consist of concrete fill with reinforcing on metal pans, with a typical riser dimension and tread depth defined. A vertical closure plate is positioned at the edge of the landing slab, which is three inches thick and supported by a steel angle stiffener. The entire assembly is framed into a steel channel header that supports the stair stringer and landing structure. The landing slab is reinforced concrete, and the connection points are referenced to the floor plan for layout and structural integration.
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