Just to be more specific, I upload a photo which I believe will make things clear. I understand the "centerline" modeling but I think I can not use it in this situation...(my guess...)
As for the rigid end offset you said, I have no idea what it is but I will search for it.
Thank you very...
I am a new user of Risa-3d and I have a question for concrete columns.
Imagine a 3-floor house with concrete columns (30cm x 150cm) on the corners. My problem is that I don't know how to design them in Risa3d in order to connect the beams to the columns and get the moment diagrams of these...