Above is my sketches of the Bishop Favro Hall stairs. In the top photo, you see a view of the stairs as I saw it from my viewpoint. From this view I then drew a plan view, and then a detail view of the steel tread. In the detail view of the steel tread, you can see that there are steel "z shape" tread pans that are fitted together and filled with concrete(I assume to be about a 4" concrete fill). Underneath each individual stair you can also see a "L" shaped steel reinforcement piece. Plus, you can see the steel stringer behind the stair running along the wall.
The detail shown above is of the landing. Like the previous detail you can see the steel stringer, the concrete fill in the stairs, the steel "z shaped" tread pans, and the "L" shaped steel reinforcement. However, in this detail you can also see the 4" concrete landing slab, the steel slab pan, and the two steel angles.
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