Due to the greater vulnerability of irregular structures to regular structures, strict rules are set by the regulations for the design and analysis of these structures. Research has been carried out to evaluate the seismic performance of irregularly constructed buildings at altitude with various seismic damper systems. Among the most commonly used seismic barrier systems is the bracing system. The main problems of this system are the buckling of the brackets in pressure. Due to the undesirable performance of converging bracing frames in severe earthquakes, there are various ways to improve this lateral system, which can be used to add a CSY steel fuse to the end of the brace, to absorb the energy it enters, and avoid buckling.Now, in order to observe the massive irregularity of the height effect on the behavior of the CSY fuse bracing frames, and the evaluation of the seismic performance of these frames in irregular and regular states, an incremental dynamic analysis for creating curves Fracture of the structure was used at different levels of performance and the fragility curve of the fuselage equipped with the CSY fuse was investigated. For this purpose, eight frame configuration brackets have been modeled with a number of different fuses, and after an incremental dynamic analysis of fragility curves presented at various performance levels. From the study of fragility curves, it was concluded that the massive irregularities occur depending on the height of the structure and can have different effects on the seismic performance of the structure.