Real-time quantitative evaluation on the cable damage of cable-stayed bridges using the correlation between girder deflection and temperature
Stayed cable is an important prestress-bearing component in cable-stayed bridges, and the cable damage will seriously threaten bridge safety. In this research, the method of real-time quantitative evaluation on cable damage is proposed through monitoring data analysis, correlation analysis, damage evaluation analysis, and validation analysis. Monitoring data analysis shows that temperature has a good linear relationship with girder deflection and cable force. Correlation analysis shows that this relationship is well described by a time-varying multiple linear regression model. In damage evaluation analysis, a new damage index is proposed for real-time quantitative evaluation. Each stay cable has a corresponding damage index, and a large value of damage index indicates a serious damage. The results of experiment and finite element analysis show that the evaluation error of this damage index is very small, which is feasible for real-time quantitative evaluation. This method can provide valuable reference for real-time quantitative evaluation on cable damage of cable-stayed bridges.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/14759217
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Supplemental Notes:
- © The Authors 2021.
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Authors:
- Wang, Gaoxin
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0000-0001-8422-0120
- Shao, Jingshu
- Xu, Weizhou
- Dong, Zhaoxing
- Chen, Bin
- Dai, Xinjun
- Publication Date: 2022-7
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 1483-1500
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Serial:
- Structural Health Monitoring
- Volume: 21
- Issue Number: 4
- Publisher: Sage Publications, Incorporated
- ISSN: 1475-9217
- EISSN: 1741-3168
- Serial URL: http://shm.sagepub.com/
Subject/Index Terms
- TRT Terms: Bridge cables; Cable stayed bridges; Deflection; Deterioration; Girders; Temperature
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;
Filing Info
- Accession Number: 01856367
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 29 2022 9:27AM