Dear lilahmiharbi, It has nothing to do with the question you asked, but I have to write a few sentences about your project. If this is the static design of your project, please, please overhaul your project. We are writing answers to many friends here, we are helping. We overhaul the projects (although neither we nor ideYAPI is responsible for it). Sometimes we intervene in the projects and re-make them and send them back. Our goal in this is to bring a minimum standard to the projects produced. To contribute to the production of "qualified, economical and SAFE" structures in which people will live, with the help of programs in the light of engineering science. While we are responsible for the lives of thousands, perhaps tens of thousands of people, we need to pay attention to the things we produce under an engineer degree. From this perspective, your project looks extraordinarily flawed and flawed. You can be offended by me about this, maybe other friends may think I'm going too far. But I have to do my duty to warn you about this design I've seen. As I mentioned above "thinking of other people who will live in it" Please rework this project from scratch. I don't know if you're young. Work with an adult. It didn't work, work with a younger one who has more knowledge on the subject. What buildings are still standing. Can this building even stand?! But in an unfavorable situation (we call it an earthquake, no matter what region it is) we do not know what we will encounter. I was going to mark a few places and give a warning. But after what I saw, I gave up on marking. I am writing to apologize to you and all my friends. "PLEASE, PLEASE SOME SENSITIVITY... " . . .