I haven't done any research on this topic, but I can comment on a few static behavior. The cantilever is a form of transportation that constantly forces and tires the building even if it is outside the building. The presence of this situation in the building will create serious discontinuities in the frame system and will reveal unbalanced opening and support moments within the building, thus disrupting the rigidity of the structure and creating diaphragms with weak rigidity in the building against earthquake loading. I think.. Kemal İNBAŞI / inş.eng.