If your analysis is on the concrete member then I think it will not be very precise to use this simulation technique (3D element will be more precise and will show you more results). If the part understudy is different then you can simulate the RC member after defining the stiffness, mass and other properties.
Sure you can! You can model it by defining stringers in property module as I've done it for my reinforced composite, after that you can design any arbitrary section for those wires.
Mohammad Reza Shokrgozar If I may ask, what did you do in your model please.
I am trying to model a steel pipe with concrete coating as wire elements in ABAQUS. Can i just model two wires with different cross sections and they share the same start and end node? But how to make them work together as a composite member?