Damage identification in concrete gravity dams using static and dynamic measurement data
Paper
Paper/Presentation Title | Damage identification in concrete gravity dams using static and dynamic measurement data |
---|---|
Presentation Type | Paper |
Authors | Le, N. T. (Author), Thambiratnam, D. P. (Author), Nguyen, A. (Author) and Chan, T. H. T. (Author) |
Editors | Cunha, A. and Caetano, E. |
Journal or Proceedings Title | Proceedings of the 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII-10) |
ERA Conference ID | 43541 |
Number of Pages | 7 |
Year | 2021 |
Place of Publication | Winnipeg, Canada |
Web Address (URL) of Paper | https://web.fe.up.pt/~shmii10//ficheiros/eBook_SHMII_2021.pdf |
Conference/Event | 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Advanced Research and Real-World Applications (SHMII-10) |
International Conference on Structural Health Monitoring of Intelligent Infrastructure | |
Event Details | International Conference on Structural Health Monitoring of Intelligent Infrastructure Rank A A A A A A A A A |
Event Details | 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Advanced Research and Real-World Applications (SHMII-10) Event Date 30 Jun 2021 to end of 02 Jul 2021 Event Location Porto, Portugal |
Abstract | Dams and reservoirs are important elements of civil infrastructure as they play critical roles in irrigation, flood control and electricity generation. Historically, dam failures have led to catastrophic loss in lives and properties. The need to monitor structural performance and detect the onset of damage in these structures using structural measurement data is thus evident, yet the relevant research has been limited. This paper presents an approach for damage detection of concrete gravity dams based on changes in static deflection and modal parameters. Theoretical formula of the static deflection change with regard to the damage characteristics taken into account both flexural and shear effects is developed. Based on this, the research shows that changes in the static deflection follow certain patterns that can be used to locate and quantify the damage in concrete gravity dams. The proposed static damage detection concept is then incorporated with vibration measurements through the modal flexibility to assess the damage. Numerical studies in this study show that the proposed approach is promising in detecting seismic cracks that are often a common damage type in real concrete dams. |
Keywords | damage identification; concrete gravity dams; static deflection change; modal flexibility change, vibrationcharacteristics |
ANZSRC Field of Research 2020 | 400508. Infrastructure engineering and asset management |
400510. Structural engineering | |
Byline Affiliations | Hanoi University of Civil Engineering, Vietnam |
Queensland University of Technology | |
School of Civil Engineering and Surveying | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q720z/damage-identification-in-concrete-gravity-dams-using-static-and-dynamic-measurement-data
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