upper rigid basement number ?

Unver teacher, is it right to accept them as rigid in the y direction, do you think curtains are not continuous? Shouldn't it be taken -3 in both directions?
 
Unver Bey, when you said X:-3 Y:-2, wasn't it supposed to be the other way around? Actually, in my interpretation, since -3 is taken in both directions, is it not necessary to determine the ratio of the curtained part in the same direction to the uncurtained part, rather than the fact that the curtains meet each other? Isn't X horizontal Y vertical direction?
 
This is my suggestion: Since there are not many floors of the building and I think parallel curtains are sufficient, I suggested that they should be taken differently in both directions. If there were more floors, or you can use -3 as an admission to stay safe. This is engineering acceptance. There is no mathematical formula. If it were, the ideCAD program would not have left this choice to us. Good luck with. Unver ÖZCAN
 
Unver, I think that if you share why you think it is enough to benefit from your vast experience, our knowledge will improve. According to my limited knowledge; In order for a floor to be considered rigid in any direction, that floor must have structural elements that will absorb all external effects (horizontal loads) in the specified direction. The earthquake calculation of the rigid floor will be calculated by taking Ra(T) = 1.5. There may be a reason for this. I think that this can be achieved with continuity. These are my views, of course, your views are more accurate and technical. Omer Faruk CAKIL
 
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