Wuhan University Journal of Natural Sciences

, Volume 23, Issue 1, pp 84–92 | Cite as

Simultaneous identification of vehicular parameters and structural damages in bridge

  • Xiaozhong Zhang
  • Guomin Sun
  • Yanhua Sun
  • Zhifeng Zhao
Engineering Science
  • 18 Downloads

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.

Keywords

vehicle-bridge coupling model vehicular parameters structural damage in bridges identification method simultaneously recognition accuracy better robustness 

CLC number

TU 317 

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Copyright information

© Wuhan University and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Xiaozhong Zhang
    • 1
  • Guomin Sun
    • 1
  • Yanhua Sun
    • 1
  • Zhifeng Zhao
    • 1
  1. 1.School of Civil and Architectural EngineeringGuizhou University of Engineering ScienceGuizhouChina

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