Evaluation of Clearance to Stop Requirements in A Seismically Isolated Nuclear Power Plant

Gyeonghee An, Minkyu Kim, Jae-Wook Jung, Gilberto Mosqueda and Joaquin Fabian Marquez
Additional contact information
Gyeonghee An: Korea Atomic Energy Research Institute, Daejeon 34057, Korea
Minkyu Kim: Korea Atomic Energy Research Institute, Daejeon 34057, Korea
Jae-Wook Jung: Korea Atomic Energy Research Institute, Daejeon 34057, Korea
Gilberto Mosqueda: Department of Structural Engineering, University of California, San Diego, CA 92093, USA
Joaquin Fabian Marquez: Department of Structural Engineering, University of California, San Diego, CA 92093, USA

Energies, 2020, vol. 13, issue 22, 1-19

Abstract: Seismically isolated nuclear power plants (NPPs) can provide substantial benefits towards reducing the failure probability of NPPs, especially for beyond design basis earthquake shaking. One risk posed by seismic isolation is the potential for pounding to a stop or moat wall, with currently little guidance provided by design standards on how to address this concern. In this paper, a structural model of an isolated NPP based on the Advanced Power Reactor 1400 MW is enveloped with moat walls and advanced bearing models. The bearing models account for large strain behavior through failure based on full-scale experiments with lead rubber bearings (LRBs). Using these analytical models and a measured ultimate property diagram from LRB failure tests, the range of clearance to the stop considering the performance criteria for the NPP is investigated. Although the analysis results are dependent on the particular models, ground motions, and criteria employed, this research provides an overview of the seismic response and performance criteria of an isolated NPP considering the clearance to the stop.

Keywords: lead rubber bearing (LRB); seismic isolation; nuclear power plant(NPP); performance criteria; clearance to the stop (CS); ultimate property diagram (UPD) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/22/6156/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/22/6156/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:22:p:6156-:d:449873

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().