Parametric Identification of Complex Bridge Structure using Substructure Approach

摘要

Parametric identification of structures is one of the important aspects of structural health monitoring.rnMost of the techniques available in the literature have been proved to be effective for structuresrnwith small degree of freedoms. However, the problem becomes challenging when the structurernsystem is large, such as bridge structures. Therefore, it is highly desirable to develop parametricrnidentification methods that are applicable to complex structures. In this paper, the LSE basedrntechniques will be combined with the substructure approach for identifying the parameters of arncable-stay bridge with large degree of freedoms. Numerical analysis has been carried out and thernresults demonstrate that the proposed approach is capable of identifying the structural parametersrnwith reasonable accuracy.