German 
French 
Spanish 
Portuguese 
Italian 
Arabic 
Russian 
Japanese 
Turkish You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Hybrid system and 75% failure
- Thread starter tevekkül
- Start date
YasinTezel
Member
Re: hash and does not provide 75% Hello You can use a mixed system because your project has BYS=7 and DTS 3a. Since Mdev/Mo is >= 0.75, you can continue with your project by taking the R and D coefficients as R=4 and D=2.5 according to the A31 carrier system. Ignore the warning "Ductility level should be limited" in the curtain roll control report. You are already limited. The correction for the disclosure has been included in our notes.
YasinTezel
Member
Re: mixed and not providing 75% I have to share a second comment, if you cannot meet the Mdev>=0.75 Mo condition, the regulation refers to Limited ductile solution and you cannot solve as Limited ductile because your Project has DTS 3a. . A similar discussion took place with ribbed systems. I am sharing the article of Prof.Dr.Nuray Aydınoğlu on this subject again. The statements here support this. If you cannot meet my recommendation of 0.75, solve your structure with High ductility selection. In this case, the column beam connection shear safety problems will need to be corrected. If you want, get information from the institution where you will present the project and continue your project in that direction.
If we comment step by step According to 4.3.4.3, if you model columns and beams in "High Ductile" in your structural system, they are considered "Limited Ductile" and can only be used in DTS 3 and 4. Using this system in your project with DTS 1 and DTS 2 with BYS >=6 If you want, you can solve it with "mixed demand" and therefore you have to provide the condition Mdev>=0.75 Mo. Even if you meet this condition and you model your columns and beams according to the "high ductile system" and you want to accept the system as high ductile, the regulation does not accept this[ /b] and your system considers it a "mixed system" In summary, columns and beams in a hollow block system are considered "limited ductile" under all circumstances and therefore "High Ductile" cannot be resolved."unalmh":2n9s0vzx" said:for two-storey villas, bks =3 bys=8 dts =1 there is no curtain in the system, I just want to solve it with a column. Is it okay if I continue by choosing a high ductility level without choosing karma?
Structures with I=1.5 cannot be solved as "Limited Ductile", no matter which DTS it is. Systems that do not meet the Mo requirement of Mdev>=0.75 are not considered "mixed ductility level" systems. That is, their columns and beams are Limited Ductile curtains are not considered as high ductile. So what is acceptable is the regulation answering "A31". That is, your system means "limited ductile" according to the regulation. Therefore, if you cannot meet the Mdev>=0.75 Mo condition in your I=1.5 structure " High Duct" you have to solve."tavekkul":363zxc0k" said:Hi... I can't do it with limited ductility level since my attached project is BKS=1, I=1.5. Since I chose mixed ductility level and met the bys condition, I continued as mixed and R=4,D according to A31 I think I should be able to do =2.5.
If we understand this matter as you say, if we cannot provide the upper limit of 75% in the system with high ductility level, we need to completely cancel the columns in our system and turn them into curtains. In addition, if we cannot meet the 75% condition in the solution with limited ductility level, according to your approach, it is necessary to completely cancel the curtains from the system and turn the system into a frame. However, the regulation does not say to change your system. It directs the R and D coefficient to be taken from the relevant section.
I understand what you mean. For example, if your structure is Mdev = 0.2 Mo, you can solve this structure with limited ductile walls and highly ductile (mixed system) columns and beams, provided that the R and D coefficients in A31 are met and the BYS condition is met. So when you said that your building didn't have I=1.5, there was no problem. But you say activate A31. So I don't meet the Mdev >= 0.75Mo requirement. I will make solution according to "Limited Ductile". This cannot be the case for I=1.5. Either you satisfy the Hybrid system condition Mdev >= 0.75Mo. Or you solve high ductile. Because the regulation wants to avoid "limited ductile" in DTS 1a-2a-3a and 4a. It wants weak column and column beam joint safety checks to be made. Even if you say no, I don't want to do these things, he says, you have to use curtains in your building very seriously. Also, "let's cancel the whole column" - "cancel the full screen" does not come out of what I said.
I am not saying that I will do a limited ductile solution. I say mix it up. So my system is mixed but does not meet the 75% requirement. In this case, I use the R and D coefficients in A31 because it meets my BYS condition. My ductility level still remains mixed. Regulation; If the BYS condition is satisfied, it allows me to continue as a mixed ductility level, taking the more unsuitable R and D coefficients (R and D in A31), since it does not meet the 75% condition.
I understand the regulation like you do when I read the regulation. That's why I commented:"tavekkul":3a57r6sd" said:I don't say that I will make a limited ductile solution. I say that I will mix it. So my system is mixed, but it does not meet the 75% condition. In this case, I use the R and D coefficients in A31 because my BYS condition is satisfied. My ductility level remains mixed again. The regulation allows me to continue with mixed ductility level by taking more unsuitable R and D coefficients (R and D in A31), since it does not meet the 75% condition if the BMS condition is met.
You do not have permission to view link
Log in or register now.