Bridge Structural Parameters Identification Method Based on HDMR Response Surface
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TU311.2

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    Abstract:

    A method for structural paramters identification based on HDMR (High Dimentional Model Representation) response surface is proposed to improve the response surface method which applied in bridge structure parameters identification. Using the HDMR response surface method the implicit function relationships between structural parameters and responses are obtained which then applied to identify the structural parameters through a constrained least square optimization strategy. The construction process of HDMR response surface is researched and based on which the implementation program of structural parameters identification is presented in this paper. Numerical examples, which contain a continuous beam structure and a single pylon cable-stayed bridge, are given to investigate the computational accuracy and efficiency of the proposed mehod in structural parameters identification. The analysis results show that, compared to the traditional response surface method, the proposed method possesses a remarkable advantage in computational accuracy. And it is verified that the proposed method is reliable and applicable in the parameters identification of large bridge structures.

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guan hua, chen dewei, bai zhizhou. Bridge Structural Parameters Identification Method Based on HDMR Response Surface[J].同济大学学报(自然科学版),2013,41(9):1347~1352

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History
  • Received:October 08,2012
  • Revised:May 26,2013
  • Adopted:April 07,2013
  • Online: September 05,2013
  • Published:
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