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Simultaneous identification of vehicular parameters and structural damages in bridge

  • Engineering Science
  • Published:
Wuhan University Journal of Natural Sciences

Abstract

In this paper, we present a method for simultaneously identifying the vehicular parameters and the structural damage of bridges. By using the dynamic response data of bridge in coupled vibration state and the algorithm for the inverse problem, the vehicle-bridge coupling model is built through combining the motion equations of both vehicle and the bridge based on their interaction force relationship at contact point. Load shape function method and Newmark iterative method are used to solve the vibration response of the coupled system. Penalty function method and regularization method are interchangeable in the process until the error is less than the allowable value. The proposed method is applied on a single-span girders bridge, and the recognition results verify the feasibility, high accuracy and robustness of the method.

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Authors and Affiliations

  1. School of Civil and Architectural Engineering, Guizhou University of Engineering Science, Bijie 551700, Guizhou, China

    Xiaozhong Zhang, Guomin Sun, Yanhua Sun & Zhifeng Zhao

Authors
  1. Xiaozhong Zhang
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  2. Guomin Sun
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  3. Yanhua Sun
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  4. Zhifeng Zhao
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Corresponding author

Correspondence to Xiaozhong Zhang.

Additional information

Foundation item: Supported by the National Natural Science Foundation of China (41402271), Guizhou Science and Technology Cooperation Project (LH [2016]7043), and Young Science and Technology Talents Growth Project of Guizhou Provincial Department of Education (KY-[2016]-282)

Biography: ZHANG Xiaozhong, male, Associate professor, Ph. D., research direction: soft matter physics.

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Zhang, X., Sun, G., Sun, Y. et al. Simultaneous identification of vehicular parameters and structural damages in bridge. Wuhan Univ. J. Nat. Sci. 23, 84–92 (2018). https://doi.org/10.1007/s11859-018-1298-x

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  • DOI: https://doi.org/10.1007/s11859-018-1298-x

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