Relative story drift system stiffness problem

M

masslab

New Member
First of all, good work. I can't get over the relative floor drift problem in my project. There have been many posts about it in the forum, I examined all of them, first I made DD1 and saved it and then I did DD2 and analyzed, but I could not come to a conclusion. I would be glad if you could help.
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"masslab":og54ycdl" said:
First of all, good work. I can&#39;t get over the relative floor drift problem in my project. There are many posts about it in the forum, I examined all of them, first I made DD1, saved and then DD2 and analyzed, but I couldn&#39;t come to a conclusion. I would be glad if you could help.l[ /quote] Hello, since the lambda value of 0.707 is a factor in the relative story drift calculation, it negatively affects the relative floor drift control as it grows. The lambda value calculated by the program according to your building coodinats and ZE semin class is 0=707 after the operation you have made. You can see the lambda value in the relative story drift report Earthquake parameters of your project: Manual control of the lambda value: Tr=0.5114 (1st mode from the dynamic analysis report) For DD3: Ta= 0.2 * Sd1/Sds Tb = Sd1/Sds Ta = 0.2* 0.593 / 0.96 =0.6177 Tb =0.593/0.96 =0.617 Ta <Tr<Tb -> For Sae(T) = 0.96 DD2: Ta=0.2* 0.99/ 1.356=0.146 Tb= 0.99/1.356=0.73 Ta <Tr<Tb -> Sae(T)=1.356 lambda = 0.96/1.356 = 0.707 Alternatively, you can consider making the wall connections independent of the structure according to 4.9.1.3b. Accordingly, you can increase the relative floor drift control limits by 2 times.
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hello, if your architecture is suitable, if your project is edited as I have done in the appendix, the relative floor drift problem disappears. Also, your floor bearing capacity must be very high, 1370 t/m2 entered.
 
Thank you for your help, there is a problem that only bothers me. As Hakan said, if the facade elements are connected with flexible connections, the infill walls are marked independently, and the wall details are added to the project, do you think I will have prepared a healthy project or should I finish my project with the column and curtain layout you have prepared?
 
&quot;masslab&quot;:3nfwr626&quot; said:
thank you for your help, I have a problem that only bothers me. As Hakan said, if the facade elements are connected with flexible connections, the infill walls are marked independently and the wall details are added to the project and I finalize my project, do you think I would have prepared a healthy project or not should I finish my project with column and curtain layout?
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hello, if the walls will be independent from the frame system in practice, of course you can.
 
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