How to calculate the curtain overturning moment

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Ismail Hakki Besler

Administrator
The earthquake code describes in detail and clearly how the Mdev and Mo calculations used in the shear overturning moment calculation should be made. I have brought together all of the articles cited here and there. When the overturning moment is calculated by grouping the bulkheads as stipulated in the regulation, there can be very important differences compared to the calculation without grouping. Depending on the normal force capacities of the arms of grouped walls and the distance c between the two arms, very large overturning moments can occur at the bottom of the wall. See. 4.5.4.3 Equivalent. (4.13) Requests the use of the moment found by grouping the wall overturning moment in clause (d) of 4.5.3.7 article.
 
You make and share this compilation at 00:30. Bless you, Sir. Thanks... Sent from my SM-N920C using Tapatalk
 
Thank you Mr. İsmail, It has become a source of reference. We need to print it out and keep it at our fingertips. Good luck with your spirit.
 
Hello Mr. Ismail; Is it possible to show numerical calculations (with screenshots) and control Mdev/Mo>=0.75 on a simple example project for a better understanding of the subject. Best regards.
 
Hello. In the calculation of the shear overturning moment, is it necessary to take the moments of the beams connected to the wall, which are formed by the earthquake force, as well? This approach is used in X programs. With such an approach, the ratio of 0.050 in the X direction becomes 0.37, and the ratio of 0.2773 in the Y direction increases to 0.58. The approach here is as follows. In fact, there is an approach towards adding the bending moment of the curtain wall while the moment due to the earthquake in the beams is taken. Can you give information about this subject? Is this our approach?
 
This is an approach, but it is a contrary approach according to the 2018 regulation. The regulation does not say to take the floor overturning moment on the bulkheads. Moreover, it clearly states how it should be calculated. If the regulation had not written this situation clearly, then this approach could be discussed. In the link below, the subject was discussed in detail with examples.
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