RESEARCH ARTICLE
Research on Seismic Response and Damping Effect for High-Speed Railway Seismic Isolated Bridge
Lingkun Chen1, 2, Lizhong Jiang*, 1, 2, Weiguo Long1, 2, 3, Liping Wang1, 2
Article Information
Identifiers and Pagination:
Year: 2011Volume: 5
First Page: 163
Last Page: 167
Publisher ID: TOCIEJ-5-163
DOI: 10.2174/1874149501105010163
Article History:
Received Date: 23/11/2010Revision Received Date: 12/7/2011
Acceptance Date: 12/7/2011
Electronic publication date: 11/8/2011
Collection year: 2011
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
With the development of high-speed railway in recent years, lots of researchers have been paying more and more attention to the seismic isolation of high-speed railway bridge. The equivalent linear model of hysteretic characteristics of lead rubber bearings (LRB) is presented, the computational method and the varying range of dynamic parameters effecting hysteretic characteristics of LRB are established. The finite model of a high-speed railway bridge including simulating of LRB is set up by ANSYS software. The seismic responses and seismic isolation ratio of high-speed isolated bridge installed LRB are calculated, and isolation effect are compared with those fabricated the common bearings; the factors which influence seismic isolation are analyzed. The calculation results show that the bending moment and shear force of pier bottom of and displacement of grider decrease effectively for that bridge with LRB, the LRB has excellent performance on seismic isolation and energy dissipation.