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Hi everybody, I have to do the same 3 floors that is existing in a ETABS model of mine, in a different ETABS model of mine. So that I want to know is there any way of importing same floors from an ETABS model to another one? Thanks,

Hi everybody, Thank you for your all replies. My problem has been solved.=) I have reviewed all the "Numerical warnings I see while analysing with standart solver (6-7 digits warnings I have)" one by one. Then my unstable warning has disappeared. In fact when I compared the periods and...

Thank you for your replies but, Then if so, I mean if the model is unstable, what should I do? What should I check? I have got 2 possibilities, in my mind: 1- Numerical warnings I see while analysing with standart solver (6-7 digits warnings I have) 2- I have huge soil loading from one side...

Hi everybody, In ETABS 2018, I am working on a building model. When I define the diaphragm as "rigid diaphragm" there is no warning but when I define the diaphragm as "semi-rigid diaphragm" "ill-condition and unstable warning" occurs. Please kindly inform me why this warning occurs and what...

Thank you Warose & JedClampett 🙏🙏... For your quick replies...

Hi, I need to know that According to ACI, is expansion joint required for underground structures? Is there any item that is limitated expansion joints for structures or underground structures in ACI? Please urgently I need to know this... Thanks