A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data
The system identification of concrete dams using seismic monitoring data can reveal the practical dynamic properties of structures during earthquakes and provide valuable information for the analysis of structural seismic response, finite element model calibration, and the assessment of postearthqua...
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MDPI AG
2022-10-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/20/3207 |
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| author | Lin Cheng Chunhui Ma Xina Yuan Jie Yang Liangcai Hu Dongjian Zheng |
| author_facet | Lin Cheng Chunhui Ma Xina Yuan Jie Yang Liangcai Hu Dongjian Zheng |
| author_sort | Lin Cheng |
| collection | DOAJ |
| description | The system identification of concrete dams using seismic monitoring data can reveal the practical dynamic properties of structures during earthquakes and provide valuable information for the analysis of structural seismic response, finite element model calibration, and the assessment of postearthquake structural damage. In this investigation, seismic monitoring data of the Pacoima arch dam were used to identify the structural modal parameters. The identified modal parameters of the Pacoima arch dam, derived in different previous studies that used forced vibration tests (FVT), numerical calculation, and seismic monitoring, were compared. Meanwhile, different modal identification results using the input-output (IO) methods and the output-only (OO) identification methods as well as the linear time-varying (LTV) modal identification method were adopted to compare the modal identification results. Taking into account the different excitation, seismic input, and modal identification methods, the reasons for the differences among these identification results were analyzed, and some existing problems in the current modal identification of concrete dams are pointed out. These analysis results provide valuable guidance regarding the selection of appropriate identification methods and the evaluation of the system identification results for practical engineering applications. |
| first_indexed | 2024-03-09T19:22:39Z |
| format | Article |
| id | doaj.art-1ef9c3286b884b1a82f33a999936ee8e |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T19:22:39Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-1ef9c3286b884b1a82f33a999936ee8e2023-11-24T03:11:35ZengMDPI AGWater2073-44412022-10-011420320710.3390/w14203207A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring DataLin Cheng0Chunhui Ma1Xina Yuan2Jie Yang3Liangcai Hu4Dongjian Zheng5State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaState Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaState Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaState Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaThe Fourth Research and Design Engineering Corporation of China National Nuclear Corporation, Shijiazhuang 050022, ChinaState Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, ChinaThe system identification of concrete dams using seismic monitoring data can reveal the practical dynamic properties of structures during earthquakes and provide valuable information for the analysis of structural seismic response, finite element model calibration, and the assessment of postearthquake structural damage. In this investigation, seismic monitoring data of the Pacoima arch dam were used to identify the structural modal parameters. The identified modal parameters of the Pacoima arch dam, derived in different previous studies that used forced vibration tests (FVT), numerical calculation, and seismic monitoring, were compared. Meanwhile, different modal identification results using the input-output (IO) methods and the output-only (OO) identification methods as well as the linear time-varying (LTV) modal identification method were adopted to compare the modal identification results. Taking into account the different excitation, seismic input, and modal identification methods, the reasons for the differences among these identification results were analyzed, and some existing problems in the current modal identification of concrete dams are pointed out. These analysis results provide valuable guidance regarding the selection of appropriate identification methods and the evaluation of the system identification results for practical engineering applications.https://www.mdpi.com/2073-4441/14/20/3207Pacoima arch damseismic monitoringsystem identificationlinear time-varying (LTV) |
| spellingShingle | Lin Cheng Chunhui Ma Xina Yuan Jie Yang Liangcai Hu Dongjian Zheng A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data Water Pacoima arch dam seismic monitoring system identification linear time-varying (LTV) |
| title | A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data |
| title_full | A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data |
| title_fullStr | A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data |
| title_full_unstemmed | A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data |
| title_short | A Literature Review and Result Interpretation of the System Identification of Arch Dams Using Seismic Monitoring Data |
| title_sort | literature review and result interpretation of the system identification of arch dams using seismic monitoring data |
| topic | Pacoima arch dam seismic monitoring system identification linear time-varying (LTV) |
| url | https://www.mdpi.com/2073-4441/14/20/3207 |
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