Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Evaluation of the Applicability of Existing Design Formula for Seismic Isolation to Nuclear Power Plants

원자력발전소 면진적용을 위한 기존 설계식의 적용성 검토

  • Kim, Hyun-Uk (Plant Construction & Engineering Office of KHNP Central Research Institute)
  • 김현욱 (한수원 중앙연구원 플랜트건설기술연구소)
  • Received : 2012.09.28
  • Accepted : 2012.11.20
  • Published : 2012.12.31
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Abstract

Involved in a research for the application of seismic isolation to the nuclear industry, this study evaluates firstly the responses of seismic isolation system considering general ranges of structural period and damping ratio by using preliminary design formula. Secondly, coupling effects of input motions were evaluated to find out appropriate conditions of excitations and effect of the iteration for calculating yield displacement of lead core was also assessed in terms of response of a seismically isolated structure. Finally, the results of preliminary design calculation were compared with those of dynamic analysis and the propriety of the formula was evaluated and appropriate ranges of reduction factor were also suggested from the results.

Keywords

References

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  1. Behavior Analysis of a Seismically Isolated NPP Structure by Varying Seismic Input Generation Method and Strong Ground Motion Duration vol.17, pp.4, 2013, https://doi.org/10.5000/EESK.2013.17.4.187
  2. Characteristics of Earthquake Responses of an Isolated Containment Building in Nuclear Power Plants According to Natural Frequency of Soil vol.17, pp.6, 2013, https://doi.org/10.5000/EESK.2013.17.6.245
  3. Multi-Step Analysis of Seismically Isolated NPP Containment Structures with Lead-Rubber Bearings vol.18, pp.6, 2014, https://doi.org/10.5000/EESK.2014.18.6.261
  4. Comparison of Seismic Responses of Seismically Isolated NPP Containment Structures using Equivalent Linear- and Nonlinear-Lead-Rubber Bearing Modeling vol.19, pp.1, 2015, https://doi.org/10.5000/EESK.2015.19.1.001