Mr. ozhan90 My suggestions: --Unfreeze your building without fixing the column and beam reinforcements, --Fix the errors in the geometry control, --Make the narrow side of the columns at least 30 cm, --Centralize those that do not center the columns in the rib beams, --Increase the thickness of the curtains at least on all floors at the top floor, --Do not enter the ladder like flooring, since you have solved the building as a semi-rigid diaphragm, enter the ladder and solve it together --5. recreate the floor formwork plan. -- The wrong places are marked in the appendix. Take it easy Unver ÖZCAN