Thank you for this video. Can you please make a video about modelling of 3D solid prestressed strands in prestressed concrete. Explain how prestressing can apply on strands? How prestressing can be release after hardening of concrete?

I would appreciate if you can tell me what is the advantage of this instead of using tie? With tie you obtain exactly the same, when the nodes of the two meshes are coincident.

Please tell me how to do that in case of steel bars as truss line element not solid