Dear tedarmi, In your project, your S4, S5 columns do not overlap on the 1st and 2nd floors. In addition, some of your columns do not provide column-beam junction security. Please review. As for the deflection issue; Dear Friends, First of all, I would like to write a few words of apology to Mr. tedarmi. None of what I will write is related to Mr. tedarmi's person. I want this to be known in the first place. The easiest way to solve the deflection problem is by increasing the height of the beam. Of course, when I write this, it's like hearing everyone say "we know that too". But I want to make a self-criticism. I don't know how accurate it is to try to cross such spans with 30 cm beams. Concrete quality is not very high. Earthquake zone pattern is 1st degree. There are no or almost non-existent curtains in the systems, and the existing ones are not feasible. In such systems, a beam height of 30 cm in my opinion requires great courage. I can say that I did not fall behind anyone in terms of courage, and I made projects that went through quite significant gaps. But until now, no one has been able to make me 30 cm high ribbed flooring. For some reason I don't find it reliable. Love...
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