吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (增刊2): 185-188.

• paper • Previous Articles     Next Articles

Concrete bridge modal parameter identification under seismic excitations

JIANG Hao1,2, GUO Xue-dong2   

  1. 1. Civil Engineering Department, Jilin Architectural and Civil Engineering Institute, Changchun 130021, China;
    2. College of Transportation, Jilin University, Changchun 130022, China
  • Received:2010-09-24 Online:2011-09-30 Published:2011-09-30

PDF (PC)

1077

Abstract:

To study validity of NExT/ERA method which be used to identify modal parameter of concrete bridge under seismic excitations,the number simulation of one pre-stressed concrete bridge was carried out.3D model of the bridge was established by FEM software.FEM analysis and time-history analysis of 3D model of PC continuous beam bridge were carried out.Seismic excitations was generated by strong earthquake records.During the simulation,practical factors such as acceleration measuring and white noise were taken into account.In the only case of the output signal modal parameter of bridge can be identified.Four-order modal parameters of the structure were identified by the number simulation.The error of the modal parameters between number simulation and FEM analysis is small.

Key words: engineering mechanics, modal parameter identification, seismic excitation, NExT, ambient excitation

CLC Number: 

  • TU311


[1] 于繁华,刘寒冰.基于支持向量机和粒子群算法的结 构损伤识别
[J].吉林大学学报:工学版,2008,38 (2):434-438. Yu Fan-hua,Liu Han-bing.Structural damage identification by support vector machine and particles warm algorithm
[J].Journal of Jilin University(Engineering and Technology Edition),2008,38(2): 434-438.

[2] 樊江玲,张志谊,华宏星.Gabor变换在模态参数辨识 中的应用
[J].噪声与振动控制,2009(6):15-18.Fan Jiang-ling,Zhang Zhi-yi,Hua Hong-xing.Application of gabor expansion in modal parameter identification
[J].Noise and Vibration Control,2009(6): 15-18.

[3] Du Xiu-li,Wang feng-quan.Modal parameter identification under non-stationary ambient excitation based on continuous time AR Model
[J].Science in China Series E-Technological Sciences,2009,52(11):3180-3187.

[4] 侯立群,欧进萍.基于时频分析的运营桥梁模态参数 识别方法
[J].振动工程学报,2009,22(1):19-25.Hou Li-qun,Ou Jin-ping.Modal parameters identification of bridge in serve based on time-frequency analysis
[J].Journal of Vibration Engineering,2009, 22(1):19-25.

[5] Lian Ji-jian,Li Huo-kun,Zhang Jian-wei.ERA modali dentification method for hydraulic structures based on order determination and noise reduction of singular entropy
[J].Science in China Series E-Technological Sciences.2009,52(2):400-412.

[6] Hou Li-qun,Ou Jin-ping,Zhao Xue-feng,et al.Identification of modal parameters and cable tension of Harbin sifangtai bridge
[J].Journal of Vibration and Shock,2009,28(5):106-110.
[1] NI Ying-sheng,SUN Qi-xin,MA Ye,XU Dong,LIU Chao. Shear distribution of multi-cell corrugated steel web composite beams based on space grid analysis [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1735-1746.
[2] YAN Ya-bin, WANG Xiao-yuan, WAN Qiang. Low-cycle fatigue fracture behavior of nanoscale interface [J]. 吉林大学学报(工学版), 2017, 47(4): 1201-1206.
[3] MENG Guang-wei, FENG Xin-yu, ZHOU Li-ming, Li Feng. Structural reliability analysis based on dimension reduction algorithm [J]. 吉林大学学报(工学版), 2017, 47(1): 174-179.
[4] CHEN Jiang-yi, LIU Bao-yuan. Influence of fiber fracture damage on dispersion characteristic of guided wave in composite plate [J]. 吉林大学学报(工学版), 2017, 47(1): 180-184.
[5] YANG Hui-yan, HE Xiao-cong, ZHOU Sen. Simulation and calculation methods for clinched joint strength [J]. 吉林大学学报(工学版), 2015, 45(3): 864-871.
[6] ZHANG Qing,WANG Lei. Internal force analysis of multiple rows of piles based on differential equation set [J]. 吉林大学学报(工学版), 2014, 44(5): 1327-1333.
[7] ZHAO Shi-jia, XU Tao, CHEN Wei, TAN Li-hui. Efficient approach for modal sensitivity analysis for near defective systems [J]. 吉林大学学报(工学版), 2013, 43(增刊1): 497-499.
[8] XU Tao, ZHAO Shi-jia, ZHANG Wei, TAN Li-hui, LV Gang, LI Heng. Perturbed origin shift combined approximation method of N repeated defective systems [J]. 吉林大学学报(工学版), 2012, 42(增刊1): 147-150.
[9] YAN Guang, FAN Zhou, LI Zhong-hai, CHENG Xiao-quan, LIU Ke-ge, ZUO Chun-cheng. Analysis and design of composite cylindrical shell with cover [J]. , 2012, (06): 1437-1441.
[10] ZHU Si-feng, LIU Fang, CHAI Zheng-yi, QI Yu-tao. Intelligent optimization techniques for femtocell pilot power in next-generation cellular network [J]. , 2012, (03): 776-781.
[11] TIAN Wei, GUO Xue-dong, YIN Xin-sheng. Theoretical and experimental research on oblique cross-section cracking resistance of wall-beam by concrete hollow block [J]. 吉林大学学报(工学版), 2011, 41(增刊2): 189-193.
[12] LI Chun-liang, WANG Guo-qiang, LIU Fu-shou, ZHAO Kai-jun. Mechanical behavior analysis of shield segment structure [J]. 吉林大学学报(工学版), 2011, 41(6): 1669-1674.
[13] ZHANG Dao-ming, GUO Xue-dong, ZHAO Zhi-meng. Bending damage analysis of reinforced concrete beam using perturbation method [J]. 吉林大学学报(工学版), 2011, 41(05): 1358-1363.
[14] CHEN Geng-Ye, WANG Yan-Zhao, YAO Zhan-Wei. Stressinduction EMF changing with load for parallelchord steel trusses [J]. 吉林大学学报(工学版), 2010, 40(增刊): 222-0227.
[15] JIA Chao, JI Sheng-Zhen, ZHANG Feng. Timedependent reliability of concrete pier of Tsingtao bay bridge [J]. 吉林大学学报(工学版), 2010, 40(06): 1543-1549.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd