I have no problem attaching a Robot file containing the model but I think it won't help much because I'm not sure such a model can be feasible in Robot since the design in question is not recommended in seismic standards but it is widely used in current building in my country.
The objective I am trying to achieve is to make the reinforcement of the column supported by the beam and not by the ground, this type of column I think is called "planted column" in English (in French " poteau raidisseur").
Most of the time this type of columns is used for aesthetic reasons in buildings so as not to interfere with the architectural plans.
What I try to do is to have the armatures of the column descending to the supports of the beam as we do in the execution plans