Behavior of Bridge Structure with FPS Isolators in Earthquakes

• Main Authors: Chi-Jen Huang, 黃季仁
• Other Authors: Jun-Ping Pu
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/61927145000618555675

碩士 === 逢甲大學 === 土木及水利工程研究所 === 87 === In general, the base isolators may be divided into two groups, i.e., the sliding isolation and rubber bearing isolation system. The sliding isolation includes the pure friction system, Electric de France system and resilient-friction base isolator (R.F.B.I.). The researchers in the University of Utah proposed the R.F.B.I. The friction pendulum system (FPS) presented in this paper is similar but more advanced than R.F.B.I. A finite element formulation including the local bending effect for the FPS isolator has been developed. None of the previous formulations, to the best of the author''s knowledge, have included such an effect in their studies. The proposed formulation provides a powerful tool for simulating the seismic behavior of the FPS isolator and the structures that are installed with the FPS-isolators. The FPS isolated system combine with fluid damper and the interaction with soil are also considerate. It is concluded that the seismic resistance of the bridges can be enhanced through installation of the FPS isolators.