1. Investigation concerning structural health monitoring of an instrumented cable-stayed bridge.
- Author
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Ko, J. M., Ni, Y. Q., Zhou, H. F., Wang, J. Y., and Zhou, X. T.
- Subjects
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BRIDGES , *DATABASES , *ENVIRONMENTAL engineering , *DETECTORS , *BUILDINGS , *RESEARCH - Abstract
In Hong Kong, a sophisticated long-term structural health monitoring system has been devised by the Highways Department of HKSAR Government to monitor the structural performance and health conditions of three cable-supported bridges. On-structure instrumentation systems for two new long-span bridges are also being implemented. The implementation of these monitoring systems highlights the necessity for developing a monitoring-based structural health evaluation paradigm for long-span bridges. This paper describes the research directed towards this that has been conducted in the Hong Kong Polytechnic University. Taking the instrumented cable-stayed Ting Kau Bridge as a paradigm, the research covers the development of an index system and a database system for monitoring data management, the modelling of the environmental variability of measured modal properties with the intention of eliminating environmental effects in vibration-based damage detection, and the feasibility of using measured modal properties from the deployed vibration sensors for structural damage identification. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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