Hello, there is no need to give elevation to S1, S5, S17, S21 columns in the ceiling of the 1st basement floor and the ceiling of the ground floor. Let the upper and lower levels of these columns be aligned with the floor plane. Since the beam height coincides with the lower end of the column, it is appropriate to only level the beam within the definition of reverse beam. When data is entered in this way, beam axial forces will decrease. Note: Your project was resolved in ver 10.17. You can reach the Ver 10.20 version and the work done from the link below.
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