To reduce the impact of earthquakes on buildings, the use of separation systems is an effective solution. In most studies on seismic isolation, in our country, the aspects of behavioral guarantees of these separators have been addressed and the probability of failure of isolated isolation structures has been studied less. In this study, considering the uncertainties in a segregated structure such as earthquake record uncertainty, modeling, design, and properties of materials in a probabilistic framework, a study on the comparison of seismic fragility of different types of friction pendulum separators has been investigated. These separators are single, dual and triple friction pendulum separators, the most important feature of friction separators, namely the effective period of separation between 3 and 5 seconds, as well as two types of steel frames with a special folding frame of 3 and 6 floors They are located on these separators. These two structures represent short-range and intermediate-ordered structures. Further, nonlinear increasing nonlinear dynamical analysis on the models performed and the performance of the systems at different levels of malfunction, ie, mild, moderate, wide and falling in the form of fracture curves for structural and non-structural components Reviewed. It has also been shown that all models based on the FEMA P-695 have a design capability and less than 10 percent collapse probability.