Seismic evaluation of skew bridge with friction type rubber bearings - Experiments and case studies

Chih Hung Lu, Kuo Chun Chang, Kuang Yen Liu, Wei Chin Cheng

研究成果: Conference contribution

摘要

The seismic response of the skew bridges with rubber bearing is studied. In Taiwan, simply-supported PCI bridges are widely used with rubber bearing pads as a supporting system. It is common seen that, during the construction practice, the rubber bearing pads have been laid on the cement mortar-made bearing pads without any details of bolting design. This kind of arrangement potentially allows rubber bearing to slide, so as the superstructure when the earthquake occurs. In addition, bridges are usually being skewed to provide transportation service, requiring a further investigation of seat width to avoid falling of the superstructure. In this study, firstly, a series of friction coefficient was conducted. Furthermore, a scale-down skew bridge model has been constructed to perform the shaking table test. According to the experimental results, the inertial forces from superstructure can be reduced because of the sliding-induced isolation effect. The analytical program, SAP2000N was used to simulate the experimental results, and it has been shown the numerical model can predict the acceptable displacement demand. Based on the parametric study, finally, the study will discuss the bridge behaviors with different skew angles and input directions of time histories.

原文English
主出版物標題9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
頁面5573-5582
頁數10
出版狀態Published - 2010 十二月 1
事件9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium - Toronto, ON, Canada
持續時間: 2010 七月 252010 七月 29

出版系列

名字9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
7

Other

Other9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
國家Canada
城市Toronto, ON
期間10-07-2510-07-29

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

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