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Vol. 175, Issue 7, July 2014, pp. 102-110




Nonlinear Seismic Response Analysis for Hong Kong-Zhuhai-Macau Bridge

* Tao Wang, Yu Li, Jing Ning

1 Key Laboratory for Bridge and Tunnel of Shanxi Province, Chang’an University, Xi’an, 710064, China
* Tel.: +86-18691897665, fax: +86-29-82336336

* E-mail: 48045664@qq.com


Received: 10 May 2007 /Accepted: 30 June 2014 /Published: 31 July 2014

Digital Sensors and Sensor Sysstems


Abstract: According to the behavior of seismically isolated continuous bridges, the bidirectional nonlinear characteristics of lead rubber bearing are taken into account by using two orthogonal nonlinear level spring elements. Based on the FEA software, the analysis models of seismically isolated and non-isolated continuous bridges are established. And the nonlinear seismic response for these analysis models is carried out under the function of the reasonably chosen seismic motion. The analytic results indicate that the natural period of seismically isolated bridge can be prolonged to avoid the principal period of ground and the seismic energy of structure can be efficiently consumed by the hysteretic energy dissipation of lead rubber bearing. So the response of bridge structure can be reduced to make sure most of the component works in the elastic phase and the structure can be well protected.


Keywords: Lead rubber bearing, Seismic response, Continuous bridge, Nonlinear analysis.


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