Roughly speaking, project number 2 is more accurate in my opinion. If it were me, I would connect the columns together. My curtains wouldn't stay in space without meaning either. It doesn't make much sense to make big curtains in those sizes and not connect them with beams. Column S16 is connected in one direction and in the direction of its short side. While it is not very problematic to connect them in ribbed floors, it is not very correct to choose not to connect them. Apart from these, I recommend that you connect K38, K46 beams not in one piece, but as a separate beam in each cantilever beam connection. You should increase the beam widths a little more, you should not make such delicate beams. Like K2, 3, 4, 5 etc beams. Although it is a single storey, all columns and curtains are designed in the same direction. All wall loads 13cm brick wall. In addition, all of the floors are designed for 0.200 kg load. However, when we look at the architectural project, there are walls on the floor and there are balconies and floor corridor floors. I suggest you consider it. NY