Diaphragm Support @ Small Bumpouts

You can assume what ever you want, but you need to provide a load path for the lateral effects that you can justify.

A small cantilever portion of the diaphragm can work but that region has chords. If you can get a reasonable chord element at each side of the cantilever portion that extends back into the diaphragm, it can certainly workout.

Different areas seem to have different levels of diaphragm design in their standard of practice. It may well depend on what type of building, the main source of lateral loads etc as to whether this is a major concern for engineers or not.

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