Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1
The seismic performance analysis of research reactor plants is crucial for ensuring the safety of the entire reactor system. This paper analyzes the plant structure seismic performance of the 2WMt Thorium Molten Salt Reactor-Liquid Fuel 1 (TMSR-LF1) at the Shanghai Institute of Applied Physics, Chin...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/1672269 |
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| author | Rencong Dai Wei Gong Xiao Wang Xiaoyan Wang Decheng Cui |
| author_facet | Rencong Dai Wei Gong Xiao Wang Xiaoyan Wang Decheng Cui |
| author_sort | Rencong Dai |
| collection | DOAJ |
| description | The seismic performance analysis of research reactor plants is crucial for ensuring the safety of the entire reactor system. This paper analyzes the plant structure seismic performance of the 2WMt Thorium Molten Salt Reactor-Liquid Fuel 1 (TMSR-LF1) at the Shanghai Institute of Applied Physics, Chinese Academy of Sciences under the action of frequent earthquakes, fortification earthquakes, and rare earthquakes was analyzed by finite element software PKPM based on the seismic design method of civil code +1°. On this basis, a comparison was made between the seismic responses of structural pushover analysis and elastoplastic time history analysis under the action of rare earthquakes, and the conservatism of these two commonly used methods for elastoplastic analysis was systematically analyzed. The results indicate that the TMSR-LF1 plant structure exhibits well bearing and deformation capacity. It meets the seismic design goal of “no damage under small earthquakes,” “no unrepairable damage under medium earthquakes,” and “no collapse under large earthquakes (using static pushover analysis),” and the critical regions are entirely within the elastic range. Furthermore, the analysis reveals that the elastoplastic time history analysis method produced a significantly higher seismic response than the pushover analysis method, which indicates the conservativeness of the time history method. Therefore, it is recommended to use the elastoplastic time history analysis method to evaluate the seismic performance of research reactor plants under rare earthquake actions. The research in this paper provides important references for the seismic performance analysis of other Class II research reactor plants. |
| format | Article |
| id | doaj-art-44701299fb5b40afa258d03d67367f32 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-44701299fb5b40afa258d03d67367f322025-02-03T06:43:03ZengWileyAdvances in Civil Engineering1687-80942024-01-01202410.1155/2024/1672269Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1Rencong Dai0Wei Gong1Xiao Wang2Xiaoyan Wang3Decheng Cui4Shanghai Institute of Applied PhysicsShanghai Institute of Applied PhysicsShanghai Institute of Applied PhysicsShanghai Institute of Applied PhysicsShanghai Institute of Applied PhysicsThe seismic performance analysis of research reactor plants is crucial for ensuring the safety of the entire reactor system. This paper analyzes the plant structure seismic performance of the 2WMt Thorium Molten Salt Reactor-Liquid Fuel 1 (TMSR-LF1) at the Shanghai Institute of Applied Physics, Chinese Academy of Sciences under the action of frequent earthquakes, fortification earthquakes, and rare earthquakes was analyzed by finite element software PKPM based on the seismic design method of civil code +1°. On this basis, a comparison was made between the seismic responses of structural pushover analysis and elastoplastic time history analysis under the action of rare earthquakes, and the conservatism of these two commonly used methods for elastoplastic analysis was systematically analyzed. The results indicate that the TMSR-LF1 plant structure exhibits well bearing and deformation capacity. It meets the seismic design goal of “no damage under small earthquakes,” “no unrepairable damage under medium earthquakes,” and “no collapse under large earthquakes (using static pushover analysis),” and the critical regions are entirely within the elastic range. Furthermore, the analysis reveals that the elastoplastic time history analysis method produced a significantly higher seismic response than the pushover analysis method, which indicates the conservativeness of the time history method. Therefore, it is recommended to use the elastoplastic time history analysis method to evaluate the seismic performance of research reactor plants under rare earthquake actions. The research in this paper provides important references for the seismic performance analysis of other Class II research reactor plants.http://dx.doi.org/10.1155/2024/1672269 |
| spellingShingle | Rencong Dai Wei Gong Xiao Wang Xiaoyan Wang Decheng Cui Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1 Advances in Civil Engineering |
| title | Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1 |
| title_full | Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1 |
| title_fullStr | Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1 |
| title_full_unstemmed | Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1 |
| title_short | Conservativeness Study on the Seismic Analysis Method for Research Reactor Plant Structure Based on TMSR-LF1 |
| title_sort | conservativeness study on the seismic analysis method for research reactor plant structure based on tmsr lf1 |
| url | http://dx.doi.org/10.1155/2024/1672269 |
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