Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Response Evaluation of Seismically Isolated Nuclear Power Plant Structure Subjected to Gyeong-Ju Earthquake

면진된 원자력발전소 구조물의 경주지진 응답평가

  • Kim, Gwang-Jeon (Department of Civil Engineering, Kangwon National University) ;
  • Yang, Kwang-Kyu (Department of Civil Engineering, Kangwon National University) ;
  • Kim, Byeong-Su (Department of Civil Engineering, Kangwon National University) ;
  • Kim, Hyeon-Jeong (Department of Civil Engineering, Kangwon National University) ;
  • Yun, Su-Jeong (Department of Civil Engineering, Kangwon National University) ;
  • Song, Jong-Keol (Department of Civil Engineering, Kangwon National University)
  • Received : 2016.11.19
  • Accepted : 2016.12.01
  • Published : 2016.12.30
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Abstract

The Gyeong-Ju earthquake in the magnitude of 5.8 on the Richter scaleoccurred in September 12, 2016. Because there are many nuclear power plants (NPP) near the epicenter of the Gyeong-Ju earthquake, the seismic stability of nuclear power plants is becoming a social problem. In order to evaluate the safety of seismically isolated NPP, the seismic response of a NPP subjected to the Gyeong-Ju earthquake was compared with those of 30 sets of artificial earthquakes corresponding to the nuclear standard design spectrum (NSDS). A 2-node model and a simple beam-stick model were used for the seismic analysis of seismically isolated NPP structures. Using 2-node model, the effect of internal temperature rise, decrease of shear stiffness, increase of lateral displacement and decrease of vertical stiffness according to nonlinear behavior of lead-rubber bearing (LRB) were evaluated. The displacement response, the acceleration response, and the shear force response of the seismically isolated nuclear containment structure were evaluated using the simple beam-stick model. It can be observed that the seismic responses of the isolated nuclear structure subjected to Gyeong-Ju earthquake is significantly less than those to the artificial earthquakes corresponding to NSDS.

Keywords

References

  1. Lee JH, Song JK. Multi-Step Analysis of Seismically Isolated NPP Containment Structures with Lead-Rubber Bearings. Journal of the Earthquake Engineering Society of Korea. 2014:18(6):261-269. https://doi.org/10.5000/EESK.2014.18.6.261
  2. Lee JH, Song JK. Comparison of seismic responses of seismically isolated NPP containment structures using equivalent linear-and nonlinear lead-rubber bearing modeling. Journal of the Earthquake Engineering Society of Korea. 2015:19(1):1-12. https://doi.org/10.5000/EESK.2015.19.1.001
  3. Lee JH, Song JK. Seismic Fragility Analysis of Seismically Isolated Nuclear Power Plant Structures using Equivalent Linear- and Bilinear Lead Rubber Bearing. Journal of the Earthquake Engineering Society of Korea. 2015:19(5):207-217. https://doi.org/10.5000/EESK.2015.19.5.207
  4. Abrahamson. NA. Non-stationary spectral matching, Seismol. Res. Lett. 63, 30. c1992.
  5. Atik LA, Abrahamson N. An Improved Method for Nonstationary Spectral Matching, Earthquake Spectra, 2010;26(3):601-617. https://doi.org/10.1193/1.3459159
  6. Yang KK, Song JK. Inelastic Response Evaluation of Lead-Rubber Bearing Considering Heating Effect of Lead Core. Journal of the Earthquake Engineering Society of Korea. 2016:20(5):311-318. https://doi.org/10.5000/EESK.2016.20.5.311
  7. U.S. Nuclear Regulatory Commission. A performance-based approach to define the site-specific earthquake ground motion. Regulatory Guide(RG) 1.208. c2007.
  8. U.S. Nuclear Regulatory Commission. Design response spectra for seismic design of nuclear power plants. Regulatory Guide(RG) 1.60. c1973.
  9. Mazzoni S, McKenna F, Scott MH, Fenves GL. OpenSEES: Open System of Earthquake Engineering Simulation, Pacific Earthquake Engineering Center, Univ. of Calif., Berkeley. (http://opensees.berkeley.edu), c2007.
  10. Kumar M, Whittaker A, Constantinou M. Response of base-isolated nuclear structures to extreme earthquake shaking. Nuclear Engineering and Design. 2015;295:860-874. https://doi.org/10.1016/j.nucengdes.2015.06.005
  11. Kim BS, Song JK. Seismic Responses of Seismically Isolated Nuclear Power Plant Structure Considering Post-Yield Stiffness of EQS Bearing. Journal of the Earthquake Engineering Society of Korea. 2016:20(5):319-329. https://doi.org/10.5000/EESK.2016.20.5.319
  12. Kumar M, Whittaker A, Constantinou M. An advanced numerical model of elastomeric seismic isolation bearings. Earthquake Engineering and Structural Dynamics. 2014;43:1955-1974. https://doi.org/10.1002/eqe.2431
  13. Kumar M, Whittaker A, Constantinou M. Response of base-isolated nuclear structures to extreme earthquake shaking. Nuclear Engineering and Design. 2015;295:860-874. https://doi.org/10.1016/j.nucengdes.2015.06.005
  14. U.S. Nuclear Regulatory Commission. Technical Considerations for Seismic Isolation of Nuclear Facilities(Draft). c2012.

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