Investigation of seismic damage and analysis of damage mode of curved bridges with different restraint systems

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Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (12) : 113-120.

WU Gang1，WANG Kehai2，SONG Shuai3，WU Bitao1，WANG Shuai3

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Abstract

In order to identify the cause of earthquake damage, structural force transfer mechanism and weak components of curved bridge under earthquake, investigation of the seismic damage and analysis of damage mode system of curved bridges with different restraint systems are carried out. The seismic damages of several curved bridges with different restraint systems occurred in Wenchuan earthquake are summarized. First, the nonlinear time-history method is used to compare and analyze the damage state and damage sequence of different components of curved bridges with different restraint systems under different level ground motions. Then the transmission mechanism and energy dissipation mechanism of curved bridges with different restraint systems are discussed. The results show that the typical seismic damage of curved bridges mainly appearances the main girder rigid body displacement, which is accompanied by in plane rotation. The main girder is easy to collide with the shear keys and abutment due to the movement. Therefore, the influence of bidirectional collision effect of main girder should be considered in the seismic analysis. The restraint system is a key weak component of the bridge system, which is prone to damage under earthquake, and it could be designed as “fuse element”. The difference of seismic damage performance and force transfer mechanism of curved bridges with different restraint systems is obvious, which mainly depends on the mechanical characteristics of the restraint system. It is recommended that bridges with rubber bearings should be reasonably set with movement limitation devices, and bridges with fixed piers should strengthen the plastic hinges of the bridge piers.

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Bridge engineering / restraint system / seismic damage investigation / damage mode

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WU Gang1，WANG Kehai2，SONG Shuai3，WU Bitao1，WANG Shuai3. Investigation of seismic damage and analysis of damage mode of curved bridges with different restraint systems[J]. Journal of Vibration and Shock, 2020, 39(12): 113-120

References

[1] 王克海, 韦韩, 李茜, 等. 中小跨径公路桥梁抗震设计理念[J]. 土木工程, 2012, 45(9):115-121.
Wang Ke-hai, Wei Han, Li Qian, et al. Philosophies on Seismic Design of Highway Bridges of Small or Medium Spans [J]. China Civil Engineering Journal, 2012, 45(9): 115-121.
[2] 左烨, 孙广俊, 王志鹏, 等. 近断层地震动作用下曲线梁桥碰撞效应研究[J]. 振动与冲击, 2018, 21(37): 52-60.
Zuo Ye, Sun Guanjun, Wang Zhipeng, et al. Pounding effect of curved bridges subjected to near-fault seismic ground motions[J]. Journal of Vibration and Shock, 2018, 21(37): 52-60.
[3] Tseng W S, Penzien J. Seismic analysis of long multiple-span highway bridges[J]. Earthquake Engineering and Structural Dynamics, 1975, 4(1): 1-24.
[4] Williams D, Godden W. Seismic response of long curved bridge structures: experiment model studies [J]. Earthquake Engineering and Structural Dynamics, 1979, 7(2): 107-128.
[5] Kawashima K, Penzein J. Theoretical and experimental dynamic behavior of a curved model bridge structure [J]. Earthquake Engineering and Structural Dynamics, 1979, 7(2): 129-145.
[6] 王东升, 孙治国, 李晓莉,等. 汶川大地震曲线梁桥震害及破坏机理分析[J]. 防灾减灾工程学报, 2010, 30(5): 572-579.
Wang Dongsheng, Sun Zhiguo, Li Xiaoli, et al. Seismic damage investigation and failure mechanism analysis of curved bridges in Wenchuan earthquake[J]. Journal of Disaster Prevention and Mitigation Engineering, 2010, 30(5): 572-579.
[7] 孙治国,王东升, 郭迅,等. 汶川大地震绵竹市回澜立交桥震害调查[J]. 地震工程与工程振动, 2011, 28(10): 44-53.
Sun Zhiguo, Wang Dongsheng, Guo Xun, el at. Damage investigation of Huilan interchange in Mianzhu after Wenchuan earthquake[J]. Journal of Earthquake Engineering and Engineering Vibration, 2011, 28(10): 44-53.
[8] 孟杰, 刘钊, 张建东. 汶川地震回澜立交桥震害成因分析[J]. 振动与冲击, 2014, 33(12): 99-105.
Meng Jie, Liu Zhao, Zhang Jiandong. Causation analysis of seismic failure for Huilan flyover under Wenchuan earthquake[J]. Journal of Vibration and Shock, 2014, 33(12): 99-105.
[9] 亓兴军, 申永刚. 地震作用下曲线梁桥非均匀碰撞效应研究[J]. 振动与冲击, 2012, 31(6):72-76.
Qi Xingjun, Shen Yonggang. Uneven distribution of pounding effect in a curved girder bridge under earthquake[J]. Journal of Vibration and Shock, 2012, 31(6):72-76.
[10] Amiadian M, Agrawal A K. Rigid-body motion of horizontally curved bridges subjected to earthquake-induced pounding[J], Journal of Bridge Engineering, 2016, DOI: 10.1061/ (ASCE)BE. 1943-5592. 0000962
[11] Aviran A., Mackie K.R., Stojadinovic B.. Guidelines for nonlinear analysis of bridge structures in California[R]. PEER Report 2008/02, California: Pacific Earthquake Engineering Research Center, 2008.
[12] CALTRANS. Seismic Design Criteria (Version 1.7)[S]. California Department of Transportation, 2013.
[13] 徐略勤, 李建中. 挡块对规则连续梁桥横向地震反应的影响[J]. 公路交通科技, 2013, 30(4): 53-59.
Xu Lueqin, Li Jianzhong. Effect of retainers on transverse seismic response of a standard continuous girder bridge[J]. Journal of Highway and Transportation Research and Development, 2013, 30(4): 53-59.
[14] 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(S): 217-223.
Huang Yong, Wang Junjie, Han Pan, et al. Seismic response analysis of continuous bridges taking account of bearing failure[J]. China Civil Engineering Journal, 2010, 43(S): 217-223.
[15] 杨溥, 李英明, 赖明. 结构时程分析法输入地震波的选择控制指标[J]. 土木工程学报, 2000, 33(6): 33-37.
Yang Pu, Li Yingmin, Lai Ming. A new Method for selection inputting waves for time-history analysis[J]. China Civil Engineering Journal, 2000, 33(6): 33-37.
[16] 张云, 谭平, 郑建勋,等. 梁桥结构地震反应分析中输入地震动选取及调整方法研究[J]. 振动与冲击, 2015, 34(6): 18-23.
Zhang Yun, Tan Ping, Zheng Jianxun, et al. Selecting and adjusting methods for earthquake input in a girder bridge’s seismic response analysis[J]. Journal of Vibration and Shock, 2015, 34(6): 18-23.
[17] Baker J W. Condition mean spectrum: tool for ground-motion selection[J]. Journal of Structural Engineering, 2011, 137(3): 322-331.
[18] 单德山, 李乔. 铁路曲线梁桥抗震设计分析[J]. 重庆交通大学学报, 2005, 24(1):1-4.
Shan Deshan, Li Qiao. Study of aseismic design for railway curved-girder bridges[J]. Journal of Chongqing Jiaotong Unversity, 2005, 24(1):1-4.
[19] 李立峰, 吴文朋, 黄佳梅, 等. 板式橡胶支座地震易损性分析[J]. 湖南大学学报（自然科学版） 2011, 38(11):1-6.
Li Lifeng, Wu Wenpeng, Huang Jiamei, et al. Research on the seismic vulnerability analysis of laminated rubber bearing[J]. Journal of Hunan University(natural Science), 2011, 38(11):1-6.
[20] JT/T 822-2011.公路桥梁铅芯隔震橡胶支座[S]. 北京：人民交通出版社, 2012.