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Abstract

To study the influence of sliding plate wear of the bearing on the seismic performance of multi-tower cable-stayed bridge structures, the wear performance test of the sliding plate of the bearing replaced by a certain in-service bridge was carried out to study the friction coefficient of the sliding plate of the bearing at different wear stages throughout the entire service process. By taking the Huangmaohai Bridge as the engineering background, a spatial three-dimensional finite element model was established to compare the seismic responses of the bridge structure under different wear degrees of the bearing plates. The research results show that during the service process, the slide plate of the bearing undergoes four processes: normal state, depletion of silicone grease, complete wear of the exposed slide plate, and wear of the stainless steel mirror surface. Moreover, the friction coefficient gradually increases from 0.01 to 0.156. The bridge transforms into a consolidation system, and the bending moment at the bottom of the pier increases by 11.4%, affecting the seismic performance of the bridge structure.

Publication Date

6-18-2022

DOI

10.14048/j.issn.1671-2579.2022.03.019

First Page

104

Last Page

108

Submission Date

May 2025

Reference

[1] 张喜刚, 刘高, 马军海, 等. 中国桥梁技术的现状与展望[J]. 科学通报, 2016, 61(4):415-425. ZHANG Xigang, LIU Gao, MA Junhai, et al. Status and prospect of technical development for bridges in China[J]. Chinese Science Bulletin, 2016, 61(4):415-425. [2] 赵桂峰, 马玉宏, 简涛, 等. 摩擦摆支座性能劣化对港珠澳隔震桥梁全寿命期抗震性能的影响[J]. 中国公路学报, 2016, 29(12): 10-16. ZHAO Guifeng, MA Yuhong, JIAN Tao, et al. Effects of performance deterioration of friction pendulum bearings on seismic behavior of Hong Kong-Zhuhai-Macao isolated bridges in life-cycle period[J]. China Journal of Highway and Transport, 2016, 29(12): 10-16. [3] 黄勇, 王君杰, 韩鹏, 等. 考虑支座破坏的连续梁桥地震反应分析[J]. 土木工程学报, 2010, 43(S2): 217-223. HUANG Yong, WANG Junjie, HAN Peng, et al. Seismic response analysis of continuous bridges taking account of bearing failure[J]. China Civil Engineering Journal, 2010, 43(S2): 217-223. [4] 庄军生, 杜文明, 夏玉龙. 摩擦摆式隔震支座用滑板性能研究[J]. 公路, 2017, 62(3): 119-125. Zhuang Junsheng, Du Wenming, Xia Yulong. Performance study of sliding plates for friction pendulum seismic isolation bearings [J]. Highway, 2017, 62(3): 119-125. [5] 王常峰, 朱春林, 陈兴冲. 活动支座摩擦作用对连续梁桥弹塑性地震反应的影响[J]. 公路交通科技, 2013, 30(5): 67-73. WANG Changfeng, ZHU Chunlin, CHEN Xingchong. Effect of friction effect at movable support on elasto-plastic seismic response of continuous girder bridge[J]. Journal of Highway and Transportation Research and Development, 2013, 30(5): 67-73. [6] 阎贵平,夏禾,姜勇.盆式支座对桥梁动力特性的影响 [C].第六届全国结构工程学术会议论文集,1997. Yan Guiping, Xia He, Jiang Yong. Influence of pot bearings on bridge dynamic characteristics [C]. Proceedings of the 6th National Conference on Structural Engineering, 1997. [7] 朱文骏.桥梁盆式支座地震作用下的力学性能研究[D].哈尔滨:中国地震局工程力学研究所,2015. Zhu Wenjun. Study on mechanical behavior of bridge pot bearings under seismic action [D]. Harbin: Institute of Engineering Mechanics, China Earthquake Administration, 2015.

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