The failure is defined as the expansion of the initial failure from one member to another, which ultimately leads to the failure of the whole structure or a large part of it. Possible risks that can cause progressive failure, such as: aircraft or vehicle collisions, design errors, or Construction, fire, explosion of gases or bombs, accidental overload, most of which have the characteristics of action in a relatively short time. In studies, buildings are more vulnerable to removing the two pillars.This is due to the fact that the area is further affected by the loading after the column is removed. The current philosophy of most of the existing regulations is to design structures for acceptable loads that may be introduced over the lifetime of the structure. For this purpose, in this paper, the concrete sections of the frame were determined first and then based on the geometric characteristics of the frame and then the frame in the software (Etabs) was modeled. According to several scenarios, the behavior of the structure after the sudden removal of its columns has been studied.. The results of the nonlinear static analysis of this stage are compared with the axial and bending forces of the members and in the event of capacity transfer, the strategy of reinforcement and improvement of the frame is presented.