The inevitability of constructing specific structures in near-far and fault areas and the benefits of seismic separators for earthquake-induced energy depletion has led to a lot of research. Separation separation, by separating the base of the building from its site at the alignment level, is an effective way to reduce the concomitant change in the position between the class and the acceleration of the classes. On the other hand, considering the failures caused by the occurrence of these earthquakes, the study of ground movements under near and far off faults is important. In this study, the effect of earthquakes near and far from the fault on buildings with The core core separator is dealt with. Accordingly, 3 types of concrete structures of 8, 16 and 23 floors are designed and developed in SAP2000 software. Then, by performing nonlinear analysis of the history of the behavior of these structures under accelerated mapping of near and far from the fault, and finally, to ensure a verified modeling method is performed with the ABAQUS finite element software program. To be The results of the research indicate that the seismic performance of all three studied models differs from near and far from the faults and that the near-fault field earthquakes are caused by high frequency content and intense stimulation by creating large period periods. Creating larger displacements than distances away from faults