Re: curtain cutting safety problem and pursantaj vaccine in columns Hello My Suggestions 1 Dilatation joint is given 5 cm, the top floor displacement total of both structures may exceed 5 cm. It should be checked after calculation. It can wedge, 2 Mixed system is given, giving a high ductility level seems right to me, (I think this is the school) 3 I gave a solution by giving the ductility level high to see the situation, I gave the error of "Increase the rigidity of the weak floor system", (with 224 errors) 4 on the floors on the floors in the buildings A semi-rigid diaphragm solution would be correct since there are gaps and it also complies with the new regulation. 5 In addition, left and right buildings are entered together. For this, enter the left and right building separately, give the left building on the right and the left side of the right building without any curtains and calculate, and after eliminating the errors, you will solve the raft foundation together. 6 I say add earthquake curtains to the appropriate places, (if you are going to put a curtain on the dilatation, the curtains should not come together, the foundation may not save.) 7 Your ground safety is very low for this building, you may need to strengthen the ground or make a pile foundation, 8 (attic) On the 5th floor, reduce the floor loads and remove the wall loads, 9 check the wall loads. There should be no walls on each beam. 10 As I always say, solve the stairs together with the building by giving the correct support conditions. Don't give the stairs as flooring 11 Flooring is needed for the elevator engine room, take it easy Ünver ÖZCAN