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Turkish Teachers, I would like to share with you a few of my problems. 1- More than 1 rigid diaphragm was detected during the analysis. If I solve this with a single rigid diaphragm in the floors, what kind of inconveniences will it cause. 2-After the analysis, there is a weak floor with ni<60 in the report. There is a warning to increase the system rigidity. But the building I do not understand is B+Ground+5, that is, 7 floors. It gave this error in the basement, 1st floor and 3rd floor. (ground floor height is 4.00m Although he did not give this problem here) If I get the answer to these two questions, it will be very appreciated and I will learn the solution of these <60 questions
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ni<60 problem
- Thread starter tekmimar
- Start date
If you think that each floor of your building acts as a single rigid diaphragm horizontally, you can solve it with the option to buy a single rigid diaphragm on each floor. However, if there are floors with serious level differences, discontinuities, or if your building is a structure with completely independent diaphragms of two tower types, it would be better to solve it by taking different rigid diaphragms. Here, as a civil engineer, you need to take initiative, the decision to be made depends on the carrier system and flooring system of the project.
HakanŞahin
Administrator
The weak floor warning is revealed when the ratio of the effective shearing areas of the relevant floor and the next floor to each other is above the specified value. The effective cutting area of the relevant floor It is much less than the upper floor. Generally, you may encounter this problem in systems with half basement or space reduction between the upper floor and the existing floor. The variables that affect the effective shearing areas are the sum of the column, wall and curtain areas. Especially the wall(Ak) values are important. In the project, it is necessary to define the wall loads according to the architecture. Examine the item 2.3.2.3 in the TDY. You will take action according to the situation. Good work..."tekmimar":28eunu0q" said:After 2-analysis, there is a weak floor with ni<60 in the report. There is a warning to increase system rigidity. I just don't understand the building B+Ground+5 ie 7 floors. (Although the ground floor height is 4.00m, it did not give this problem here)
Mr. Design, there is a partial basement in your system, and you only have a shear on one axis. When you turn the entire perimeter of this partial basement with the basement curtain and analyze the reinforcements of the reinforcement curtains you use on the floors with S 420, 3-4 columns are also insufficient. These are also 10 cm. When you enlarge, you can get a report. Good work. (Instead of R coefficient 6 system mixed, analysis was performed by choosing R=7 high ductile since alphas= 0.40)
YasinTezel
Member
"design":2ydxzorr" said:hi guys... in the project <ni 0.60 olan zayıf kat var. bu sorunu ne yaptıysam çözemedim. mevcut bi okul binasının güçlendirmesini yapıyorum. çözüme ulaşamadım. katlar arasında kot farkı var. bunu nasıl aşarım.
Merhaba
1.Bodrum kat olarak tanımladığınız kademeyi Normal katta elemanlara kot vererek tanımlarsanız. ve 1.Bodrum katı silerseniz. Zayıf kat düzensizlik durumu çıkmayacaktır.
İyi çalışmalar.
Use one of the upload sites to upload the file."ftoprak58":2zt45puq" said:I have the same problem, no matter what I did, it didn't fix the file. The file is too big. Even though I compressed it