http://s2.dosya.tc/server3/8womlp/ERDAL_SAHIN_MIMARI.rar.html Thank you very much for your answer, Mr. Unver. When you examine the architecture of the project, you will see that when we design beams in this way, beams on the upper floors As it passes through the middle of it, our architect does not approach the solution in this way due to commercial and design concerns. How can I solve it in another way, can you help me about this. 7 columns (the number of columns in the building are already known) are not connected to the other direction. Moreover, two of them are completely double-sided columns cantilever (corner columns). What kind of commercial concern can we talk about in this case? If not (it's better than this, although I don't approve) suggest a gear floor system (hollow hole).