Why is there a tipping moment requirement?

[civilization]

Hello, you are also encountering that it is almost impossible to increase the tipping moment above 75%, especially in hollow blocks. I have such a job in my hand, I couldn't pass 60% and now I started to question life. Why did the legislators bring this overturning moment before us, what was the calculation and comparison of the base shear force missing? why 75%. also between 40-75 at high ductility. What kind of method was used to determine these numbers and these values were given to us as limit values. I know it's not a question about the program, but for a few days, this question has been going around in my mind. Thanks in advance.

 

[Ismail Hakki Besler]

Re: Why is the overturning moment condition there? This and similar conditions are determined by statistical methods. The performances of similar structures are found by nonlinner analysis. And statistically, rules are determined to design these structures according to strength.

 

[civilization]

Re: Why is there a tipping moment requirement?

This and similar conditions are determined by statistical methods. The performances of similar structures are found by making nonlinner analysis. Rules are determined for designing structures.

Thank you, Mr. İsmail, for your answer. It has a statistical basis, of course, I have no objection to it. What I am wondering is what happens when it is below the 75% condition for hollow floor systems. If it's 60 instead of 75, does the performance drop too much and is there too much performance difference between the base shear force and the tipping moment?

 

[Ismail Hakki Besler]

For your full understanding of this topic,

You do not have permission to view link Log in or register now.

and your contribution I suggest you read the title. If the rule was 60%, we would have equipped the bulkheads in the structure under 15% less moment. And the columns would share this 15% moment among themselves. The reason why the ratio related to the moment is given instead of the shear force is that we can control the ductile behavior more easily in the palm of our hand in reinforced concrete.