Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest
Concrete gravity dams are one of the most common water retention structures, some of which are located in seismically active regions. Determination of damage level after earthquakes plays an important role in assessing the safety behavior of concrete dams. Compared with the traditional performance p...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/12/4134 |
| _version_ | 1827714986300932096 |
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| author | Xiang Lu Liang Pei Jiankang Chen Zhenyu Wu Chen Chen |
| author_facet | Xiang Lu Liang Pei Jiankang Chen Zhenyu Wu Chen Chen |
| author_sort | Xiang Lu |
| collection | DOAJ |
| description | Concrete gravity dams are one of the most common water retention structures, some of which are located in seismically active regions. Determination of damage level after earthquakes plays an important role in assessing the safety behavior of concrete dams. Compared with the traditional performance parameters obtained from numerical simulations, such as the damage coefficient, energy dissipation, failure modes, and stress state, etc., the displacement of dams can be acquired from daily monitoring data conveniently and quickly. It is of great significance for the rapid and effective evaluation of dam properties after earthquakes. The residual displacement in the concrete gravity dam crest was adopted as the performance parameter in the paper, and the linear mapping function between the residual displacement and the damage coefficient was established based on the concrete damaged plasticity model (CDP). Based on the traditional classification method with damage coefficient, a residual displacement-based seismic damage classification method with corresponding level limits was proposed. The seismic fragility analysis of Guandi concrete gravity dam was conducted as an example to illustrate the presented methodology. The results indicate that the proposed method is reasonable, effective, and can be easily applied to different projects after slight modifications. |
| first_indexed | 2024-03-10T19:08:11Z |
| format | Article |
| id | doaj.art-76ff19e33a694837bc893db20b6bceec |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T19:08:11Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-76ff19e33a694837bc893db20b6bceec2023-11-20T03:59:42ZengMDPI AGApplied Sciences2076-34172020-06-011012413410.3390/app10124134Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the CrestXiang Lu0Liang Pei1Jiankang Chen2Zhenyu Wu3Chen Chen4State Key Laboratory of Hydraulics and Mountain River Engineering, College of Hydraulic and Hydroelectric Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Hydraulic and Hydroelectric Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Hydraulic and Hydroelectric Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Hydraulic and Hydroelectric Engineering, Sichuan University, Chengdu 610065, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Hydraulic and Hydroelectric Engineering, Sichuan University, Chengdu 610065, ChinaConcrete gravity dams are one of the most common water retention structures, some of which are located in seismically active regions. Determination of damage level after earthquakes plays an important role in assessing the safety behavior of concrete dams. Compared with the traditional performance parameters obtained from numerical simulations, such as the damage coefficient, energy dissipation, failure modes, and stress state, etc., the displacement of dams can be acquired from daily monitoring data conveniently and quickly. It is of great significance for the rapid and effective evaluation of dam properties after earthquakes. The residual displacement in the concrete gravity dam crest was adopted as the performance parameter in the paper, and the linear mapping function between the residual displacement and the damage coefficient was established based on the concrete damaged plasticity model (CDP). Based on the traditional classification method with damage coefficient, a residual displacement-based seismic damage classification method with corresponding level limits was proposed. The seismic fragility analysis of Guandi concrete gravity dam was conducted as an example to illustrate the presented methodology. The results indicate that the proposed method is reasonable, effective, and can be easily applied to different projects after slight modifications.https://www.mdpi.com/2076-3417/10/12/4134concrete gravity damseismic fragility analysisresidual displacementperformance parametersdamage classification |
| spellingShingle | Xiang Lu Liang Pei Jiankang Chen Zhenyu Wu Chen Chen Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest Applied Sciences concrete gravity dam seismic fragility analysis residual displacement performance parameters damage classification |
| title | Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest |
| title_full | Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest |
| title_fullStr | Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest |
| title_full_unstemmed | Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest |
| title_short | Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest |
| title_sort | research and application of a seismic damage classification method of concrete gravity dams using displacement in the crest |
| topic | concrete gravity dam seismic fragility analysis residual displacement performance parameters damage classification |
| url | https://www.mdpi.com/2076-3417/10/12/4134 |
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