| 英文摘要 |
In this paper, a structural health monitoring (SHM) system based on multi-scale crosssample entropy (MSCE) calculations was proposed for detecting damage locations in multibay three-dimensional structures. The location of damage was evaluated for each bay through MSCE analysis by examining the degree of dissimilarity between the response signals of vertically adjacent floors. Subsequently, the results were quantified using the damage index (DI). The performance of the proposed SHM system was determined in this study by performing a finite element analysis of a multi-bay seven-story structure. The derived results revealed that the SHM system successfully detected the damaged floors and the respective direction of damage for several cases. The proposed system provides a mechanism for the preliminary assessment of determining which bay has been more severely affected. Thus, the effectiveness and high potential of the SHM system for rapidly locating damaged areas in large and complex structures at low cost is demonstrated. |
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