Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions
The seismic sensors used for automatic seismic trip systems (ASTS) of nuclear power plants (NPPs) are mainly arranged on the raft foundation of reactor buildings; however, the arrangement principle of seismic sensors is not clear. In order to analyze the seismic response sensitivity of the raft foun...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/19/7135 |
| _version_ | 1797479520950812672 |
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| author | Liang Li Rong Pan Yu Lu |
| author_facet | Liang Li Rong Pan Yu Lu |
| author_sort | Liang Li |
| collection | DOAJ |
| description | The seismic sensors used for automatic seismic trip systems (ASTS) of nuclear power plants (NPPs) are mainly arranged on the raft foundation of reactor buildings; however, the arrangement principle of seismic sensors is not clear. In order to analyze the seismic response sensitivity of the raft foundation of reactor building in NPPs, this paper carried out the seismic response sensitivity research at seven positions on the raft foundation of a reactor building under three site conditions, with two sets of time histories as input. The results show that (1) the peak acceleration of the outer ring point of the raft foundation was the largest, and the peak acceleration of the center point was the smallest; (2) the peak value of the floor response spectrum at the outer ring point of the raft foundation was the largest, and the peak value at the center point was the smallest. In an earthquake, the outer ring point of the raft foundation of the reactor building was the most sensitive. It was suggested that the seismic sensors used for ASTS should be arranged at the outer ring of the raft foundation NPP reactor building, and the shutdown threshold shall be calculated according to site conditions and structural characteristics. |
| first_indexed | 2024-03-09T21:47:13Z |
| format | Article |
| id | doaj.art-65f97320f0524134ade9cebd451bec22 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T21:47:13Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-65f97320f0524134ade9cebd451bec222023-11-23T20:13:44ZengMDPI AGEnergies1996-10732022-09-011519713510.3390/en15197135Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site ConditionsLiang Li0Rong Pan1Yu Lu2Nuclear and Radiation Safety Center, Ministry of Ecology and Environment, Beijing 100082, ChinaNuclear and Radiation Safety Center, Ministry of Ecology and Environment, Beijing 100082, ChinaNuclear and Radiation Safety Center, Ministry of Ecology and Environment, Beijing 100082, ChinaThe seismic sensors used for automatic seismic trip systems (ASTS) of nuclear power plants (NPPs) are mainly arranged on the raft foundation of reactor buildings; however, the arrangement principle of seismic sensors is not clear. In order to analyze the seismic response sensitivity of the raft foundation of reactor building in NPPs, this paper carried out the seismic response sensitivity research at seven positions on the raft foundation of a reactor building under three site conditions, with two sets of time histories as input. The results show that (1) the peak acceleration of the outer ring point of the raft foundation was the largest, and the peak acceleration of the center point was the smallest; (2) the peak value of the floor response spectrum at the outer ring point of the raft foundation was the largest, and the peak value at the center point was the smallest. In an earthquake, the outer ring point of the raft foundation of the reactor building was the most sensitive. It was suggested that the seismic sensors used for ASTS should be arranged at the outer ring of the raft foundation NPP reactor building, and the shutdown threshold shall be calculated according to site conditions and structural characteristics.https://www.mdpi.com/1996-1073/15/19/7135nuclear power plantautomatic seismic trip systemsground motion parameterssoil–structure interaction |
| spellingShingle | Liang Li Rong Pan Yu Lu Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions Energies nuclear power plant automatic seismic trip systems ground motion parameters soil–structure interaction |
| title | Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions |
| title_full | Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions |
| title_fullStr | Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions |
| title_full_unstemmed | Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions |
| title_short | Seismic Response Sensitivity Analysis of the Raft Foundation NPP Reactor Building under Different Site Conditions |
| title_sort | seismic response sensitivity analysis of the raft foundation npp reactor building under different site conditions |
| topic | nuclear power plant automatic seismic trip systems ground motion parameters soil–structure interaction |
| url | https://www.mdpi.com/1996-1073/15/19/7135 |
| work_keys_str_mv | AT liangli seismicresponsesensitivityanalysisoftheraftfoundationnppreactorbuildingunderdifferentsiteconditions AT rongpan seismicresponsesensitivityanalysisoftheraftfoundationnppreactorbuildingunderdifferentsiteconditions AT yulu seismicresponsesensitivityanalysisoftheraftfoundationnppreactorbuildingunderdifferentsiteconditions |