Load Carrying Capacity Evaluation of Composite PC Girder Bridges Based on the System Identification

구조특성확인기법에 의한 PC교의 내하력평가

  • Kim, Kee-Dae (Dept. of Construction Environmental Engineering, Daegu University)
  • 김기대 (대구대학교 건설환경공학부)
  • Received : 2005.06.29
  • Accepted : 2005.11.20
  • Published : 2005.11.30

Abstract

This paper presents the application of system identification approaches for the load carrying capacity evaluation of composite PCI girder bridges based on the result of field test. For these problems, the moment of inertia of cross-sectional area and the natural frequency of bridge were used as structural parameters, the SAP2000 program for the structural analysis and the SLP method for the minimum error. As a result, it is found that the proposed algorithm for this study appears applicable to real structures with reasonable complexity. It is shown that the introduction of approximate quadratic equations is more realistic and timesaving than the common methods.

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Acknowledgement

Supported by : 대구대학교