Hi, I have a project where an elevated concrete slab for a new cmu electrical building is under construction. The slab is elevated a few feet above grade due to the flood level and is supported by a concrete stem wall with strip footings around the perimeter. Both the slab and the stem wall are 12" thick with double layers of reinforcement. Where the slab frames into the stem wall the horizontal rebar in the slab ends in 90-degree standard hooks and the vertical reinforcement in the stem wall also ends in 90-degree standard hooks. This is a detail I've seen typically however someone mentioned that the vertical reinforcement in the stem wall at the outside face should splice the top layer of reinforcement in the slab (negative reinforcement). Because I've never seen this I'm not sure if it's overkill. What do people typically do in this situation?
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