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

Author

Listed:
  • 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)

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.

Suggested Citation

  • Gyeonghee An & Minkyu Kim & Jae-Wook Jung & Gilberto Mosqueda & Joaquin Fabian Marquez, 2020. "Evaluation of Clearance to Stop Requirements in A Seismically Isolated Nuclear Power Plant," Energies, MDPI, vol. 13(22), pages 1-19, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:22:p:6156-:d:449873
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    References listed on IDEAS

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    1. Zhiguang Zhou & Xiaorong Hu & Jenna Wong, 2018. "Special Issues in the Application of Seismic Isolation to Nuclear Power Plants," Energies, MDPI, vol. 11(9), pages 1-17, September.
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    Cited by:

    1. Duy-Duan Nguyen & Tae-Hyung Lee & Van-Tien Phan, 2021. "Optimal Earthquake Intensity Measures for Probabilistic Seismic Demand Models of Base-Isolated Nuclear Power Plant Structures," Energies, MDPI, vol. 14(16), pages 1-18, August.

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