I skimmed through the project but didn't write an answer. Now I want to write something. In order to overcome the column beam shear safety problem, first of all, it is necessary to look at which beams they originate from. In such a case, it may be sufficient to reverse the column dimensions. I think the column sizes are too big in your project. maybe just converting the column sizes will help you solve a lot of problems. There is one thing I always say: static design, static design.... If you arrange the columns by staggering their dimensions while placing them, you will have solved a large part of the column-beam connection problem from the beginning. The dimensions are also not too inflated. What I wrote is not specific to your project. I say general things so that they can read this part of the forum and find a solution easily without encountering similar problems. Otherwise, you will find a solution in this project, and you will continue to suffer similar problems in the next projects. Regards.. good work. N. YILMAZ