Polynomial Friction Pendulum Isolator (PFPI) is a performance-oriented isolator which is designed to reduce the acceleration response of the superstructure in earthquakes with a return period of 475 year and decrease the displacement of the superstructure in earthquakes with a return period of 2,500 year. Currently there is no systematic design code for PFPI, therefore, it is difficult to implement it on the civil engineering. For the purpose of carrying out PFPI on the civil engineering, this study developed a performance-based design code according to the Seismic Design Specifications for Highway Bridges. In addition, providing the usable parameter range through discussions. For verifying the effectiveness of the designed PFPI procedure, this study used artificial earthquakes to examine whether PFPI will achieve the performance objectives and compare the seismic response of PFPI with that of FPS( Friction Pendulum System ) under the same parameters. The results revealed that the PFPI which designed according to the code of this study does indeed achieve the performance objectives. Moreover, it is even more effective to reduce seismic structural response than FPS.
