Damage assessment of concrete gravity dams using vibration characteristics
Paper
Paper/Presentation Title | Damage assessment of concrete gravity dams using vibration characteristics |
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Presentation Type | Paper |
Authors | Le, N. T. (Author), Thambiratnam, D. P. (Author), Chan, T. H. T. (Author), Nguyen, A. (Author) and Huynh, B. K .T. (Author) |
Editors | Zingoni, Alphose |
Journal or Proceedings Title | Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation |
ERA Conference ID | 50834 |
Number of Pages | 6 |
Year | 2016 |
Place of Publication | London, United Kingdom |
ISBN | 9781138029279 |
9781315641645 | |
Web Address (URL) of Paper | https://www.crcpress.com/Insights-and-Innovations-in-Structural-Engineering-Mechanics-and-Computation/Zingoni/p/book/9781138029279 |
Conference/Event | 6th International Conference on Structural Engineering, Mechanics and Computation: Insights and Innovations in Structural Engineering, Mechanics and Computation (SEMC 2016) |
International Conference On Structural Engineering, Mechanics and Computation | |
Event Details | 6th International Conference on Structural Engineering, Mechanics and Computation: Insights and Innovations in Structural Engineering, Mechanics and Computation (SEMC 2016) Event Date 05 to end of 07 Sep 2016 Event Location Cape Town, South Africa |
Event Details | International Conference On Structural Engineering, Mechanics and Computation SEMC |
Abstract | Vibration-based Structural Health Monitoring (VBSHM) has emerged as a feasible technique in long-term monitoring, structural performance evaluation and damage assessment of civil structures. As an important as-pect of the complete VBSHM system, over the last three decades, many vibration-based damage detection methods have been developed for buildings and bridges. However, the application of these techniques to con-crete gravity (CG) dams has been limited. In the present study, damage indices based on changes in modal flexibility and modal strain energy are suitably enhanced to be applicable for plane-strain structures. They are then used to investigate the feasibility of detecting and locating damage in a finite element CG dam model without noise effects. Results show that the enhanced damage indices can be promising for locating damage in the upstream part of CG dams by using only the first lateral mode of vibration. In addition, it is necessary to monitor both horizontal and vertical mode shape components and use these for structural damage diagnoses in CG dams. |
Keywords | modal flexibility, modal strain energy, damage detection, damage indices, vibration damage detection, concrete gravity dams |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Queensland University of Technology |
Hanoi University of Civil Engineering, Vietnam | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q54x0/damage-assessment-of-concrete-gravity-dams-using-vibration-characteristics
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