Research on Damage Identification of Cable-Stayed Bridge with Model Test Based on Dynamic Characteristics

Abstract:

Based on the change coefficient of modal flexibility curvature, an experimental research on damage recognition of cable-stayed bridge was conducted. The working conditions are introduced, as well as the design and manufacture of the model that can serve as an important guide to the similar experiments. In the design of this experiment, the optimization of cable tensions and the sensor placement optimization were discussed and the suitable methods were chosen and verified. The results verify the sensitivity of the change coefficient of modal flexibility curvature and compare the identification ability on different parts of the same damage location. In addition, how the number of modes required affects the change coefficient of modal flexibility curvature was discussed and the proper number is given.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 1228-1232
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.1228
• Online since: January 2014
• Authors: Zhao Hui Lu*, Wei Peng, Quan Hui Chang, Jian Guo, Lu Lu Wang
• Keywords: Cable-Stayed Bridge, Damage Identification, Total Bridge Model Test, Variation Coefficient of Flexibility Curvature

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