Generate between slabs beams and columns

Amigos @danco111 @Rodrigo_Bustos buenas, Just a little observation, the official language of the forum is english, i speak spanish to but is better follow the rules, take a look at those posts i think will gives you some ideas and maybe a solution.

(en serio no lo han resuelto en 6 años? :melting_face: no nos hagan quedar mal a los latinos! :stuck_out_tongue_winking_eye:)