A parametric study of seismic behavior of roller seismic isolation bearings for highway bridges

被引:45
|
作者
Ou, Yu-Chen [1 ]
Song, Jianwei [2 ]
Lee, George C. [2 ]
机构
[1] Natl Taiwan Univ Sci & Technol, Dept Construct Engn, Taipei, Taiwan
[2] SUNY Buffalo, Dept Civil Struct & Environm Engn, Buffalo, NY 14260 USA
来源
关键词
seismic; bridges; seismic isolation; roller bearings;
D O I
10.1002/eqe.958
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A roller seismic isolation bearing is proposed for use in highway bridges. The bearing utilizes a rolling mechanism to achieve seismic isolation and has a zero post-elastic stiffness under horizontal ground motions, a self-centering capability, and unique friction devices for supplemental energy dissipation. The objectives of this research are to investigate the seismic behavior of the proposed bearing using parametric studies (1) with nonlinear response history analysis and (2) with equivalent linear analysis according to the AASHTO guide specifications, and by comparing the results from both analysis methods (3) to evaluate the accuracy of the AASHTO equivalent linear method for predicting the peak displacement of the proposed bearing during an earthquake. Twenty-eight ground motions are used in the studies. The parameters examined are the sloping angle of the intermediate plate of the bearing, the amount of friction force for supplemental energy dissipation, and the peak ground acceleration levels of the ground motions. The peak displacement and base shear of the bearing are calculated. Results of the studies show that a larger sloping angle does not reduce the peak displacement for most of the parametric combinations without friction devices. However, for parametric combinations with friction devices, it allows for the use of a higher friction force, which effectively reduces the peak displacement, while keeping a self-centering capability. The AASHTO equivalent linear method may underestimate the peak displacement by as much as 40%. Vertical ground motions have little effect on the peak displacement, but significantly increase the peak base shear. Copyright (C) 2009 John Wiley & Sons, Ltd.
引用
收藏
页码:541 / 559
页数:19
相关论文
共 50 条
  • [1] A Study on Seismic Isolation Response of Bridges Friction Roller Bearings
    唐红梅
    刘荣灿
    陈洪凯
    [J]. 公路, 2010, (11) : 24 - 28
  • [2] SEISMIC BEHAVIOR OF HIGHWAY BRIDGES WITH BASE ISOLATION
    GHOBARAH, A
    [J]. CANADIAN JOURNAL OF CIVIL ENGINEERING, 1988, 15 (01) : 72 - 78
  • [3] Seismic performance of composite rubber bearings for highway bridges: Bearing test and numerical parametric study
    Zhong, Haiqiang
    Yuan, Wancheng
    Dang, Xinzhi
    Deng, Xiaowei
    [J]. ENGINEERING STRUCTURES, 2022, 253
  • [4] Characterization of a Roller Seismic Isolation Bearing with Supplemental Energy Dissipation for Highway Bridges
    Lee, George C.
    Ou, Yu-Chen
    Niu, Tiecheng
    Song, Jianwei
    Liang, Zach
    [J]. JOURNAL OF STRUCTURAL ENGINEERING, 2010, 136 (05) : 502 - 510
  • [5] Seismic retrofitting of highway bridges in Illinois using friction pendulum seismic isolation bearings and modeling procedures
    Dicleli, M
    Mansour, MY
    [J]. ENGINEERING STRUCTURES, 2003, 25 (09) : 1139 - 1156
  • [6] Parametric seismic evaluation of highway overpass bridges in moderate seismic areas
    Simon, Jozsef
    Vigh, Gergely L.
    [J]. EARTHQUAKES AND STRUCTURES, 2017, 12 (03) : 375 - 388
  • [7] Study of the seismic performance of expansion double spherical seismic isolation bearings for continuous girder bridges
    Tianbo Peng
    Xuntao Yu
    Zhennan Wang
    Lei Han
    [J]. Earthquake Engineering and Engineering Vibration, 2012, 11 : 163 - 172
  • [8] Study of the seismic performance of expansion double spherical seismic isolation bearings for continuous girder bridges
    Peng Tianbo
    Yu Xuntao
    Wang Zhennan
    Han Lei
    [J]. EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION, 2012, 11 (02) : 163 - 172
  • [10] Joint irregularity in the seismic behavior of highway bridges
    Gomez-Soberon, M. E.
    Gomez-Benitez, A. E.
    Aguirre-Eligio, R. J.
    [J]. MAINTENANCE, SAFETY, RISK, MANAGEMENT AND LIFE-CYCLE PERFORMANCE OF BRIDGES, 2018, : 1256 - 1263