Hello,

In this project, I have modeled a double T-beam cross-section with a dummy plate on top. I followed the steps from the Sofistik tutorial for a double T-beam bridge. However, when I calculate the loads, it is clear that the Quad and beam elements are not coupled together.( See the pictures 1)

The solution I found is to couple the edges of the Quad elements with the beam elements using the command for coupling between lines. Now, the problem I encounter is that during superposition, I get a significant rotation in the Quad elements. that effects the whole models

Does anyone have any ideas on how to overcome these problems?

Thank you in advance.