Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Bouc-Wen Model and Earthquake Characteristics for Responses of Seismically Isolated Nuclear Power Plant by Lead-Rubber Bearing

납-고무 받침에 의해 면진된 원전구조물의 응답에 대한 Bouc-Wen 모델 및 지진특성의 영향

  • Received : 2015.05.20
  • Accepted : 2017.01.05
  • Published : 2017.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to modeling seismic isolation system such as lead-rubber bearing (LRB), bilinear model is widely used by many researchers. In general, an actual force-displacement relationship for LRB has a smooth hysteretic shape. So, Bouc-Wen model with smooth hysteretic shape represents more accurately actual hysteretic shape than bilinear model. In this study, seismic responses for seismically isolated nuclear power plant (NPP) with LRB modelled by Bouc-Wen and bilinear models are compared with those of NPP without seismic isolation system. To evaluate effect of earthquake characteristics for seismic responses of NPP isolated by LRB, 5 different site class earthquakes distinguished by Geomatrix 3rd Letter Site Classification and artificially generated earthquakes corresponding to standard design spectrum by Reg. Guide 1.60 are used as input earthquakes. From the seismic response results of seismically isolated NPP, it can be observed that maximum displacements of seismic isolation modelled by Bouc-Wen model are larger than those by bilinear model. Seismic responses of NPP with LRB is significantly reduced than those without LRB. This reduction effect for seismic responses of NPP subjected to Site A (rock) earthquakes is larger than that to Site E (soft soil) earthquakes.

Keywords

References

  1. Bouc R. Mathematical mode for hysteresis. Report to the Centre de Recherches Physiques. Marseille, France. c1971. p.16-25.
  2. Wen YK. Method for random vibration of hysteretic systems. Journal of Engineering Mechanics Division. 102(EM2), p.249-263.
  3. Ok JK, Mun SH, Yoo WS, Lee SK, Sohn JH. Study on Bushing Modeling for the Vehicle Dynamics Analysis Using the Bouc-Wen Hysteretic Model. Transactions of KSAE. 2006;14(2):158-165.
  4. Semi-active Control of a Seismically Excited Cable-Stayed Bridge Considering Dynamic Models of MR Fluid Damper
  5. Moon SJ, Chung JH Kim BH. Optimim Design of Base Isolators Using Bouc-wen Model. EESK J. Earthquake Eng. 2003 Sep; 15(2):395-402.
  6. Song JK. Effect of Smooth Hysteretic Behavior for Inelastic Response Spectra. Journal of the Earthquake Engineering Society of Korea. 2010:14(1):1-9.
  7. Song JK. Evaluation of Strength Reduction Factors using Smooth Hysteretic Behavior. Journal of the Earthquake Engineering Society of Korea. 2010:14(4):49-60.
  8. Song JK. Evaluation of Inelastic Displacement Ratios for Smooth Hysteretic Behavior Systems. Journal of the Earthquake Engineering Society of Korea. 2011:15(3):11-26.
  9. 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
  10. Lee JH, Song JK. Seismic Fragility Analysis of Seismically Isolated Nuclear Power Plant Structures using Equivalent Linear- and Bilinear- Lead Rubber Bearing Model. Journal of the Earthquake Engineering Society of Korea. 2015:19(5):207-217. https://doi.org/10.5000/EESK.2015.19.5.207
  11. Lysmer J, Ostadan F, Chin CC. A system for analysis of soilstructure interaction, SASSI 2000 theoretical manual. UC Berkeley; c1999.
  12. Mazzoni S, McKenna F, Scott MH, Fenves GL. OpenSees: Open System of Earthquake Engineering Simulation. Pacific Earthquake Engineering Center, Univ. of Calif., Berkeley. [cited 2007] Available from: http://opensees.berkeley.edu.
  13. Harvey PS, Gavin HP. Truky isotropic hysteresis with arbitrary knee sharpness. Earthquake Engineering and Structural Dynamics. 2013;00:1-6.
  14. Hancock J, Watson-Lamprey J, Abrahamson NA, Bommer JJ, Markatis A, McCoy E, Mendis R. An improved method of matching response spectra of recorded earthquake ground motion using wavelets. Journal of Earthquake Engineering. 2006;10(S1):67-89.
  15. U.S. Atomic Energy Commision. Regulatory Guide 1.60. Design response spectra for seismic design of nuclear power plants. c1973.
  16. PEER Strong Motion Database[Internet]. Berkeley, California. Available from: http://peer.berkeley.edu/smcat/sites.html.
  17. Baber TT, Noori MN. Random vibration of degrading, Pinching systems. Journal of Engineering Meachnics. 1985;111(8):1010-1026.
  18. Aristotelis E, Charalampakis. Parameters of Bouc-Wen Hysteretic Model Revisited. 9th HSTAM International Congress on Mechanics Limassol, Cyprus. 2010. Jul 12-14.
  19. A.E Charalampakis, V.K. Koumousisl. On the response and dissipated energy of Bouc-Wen hysteretic model. Journal of Sound and Vibration 309. c2007. p.887-895.

Cited by

  1. A Probabilistic Study on Seismic Response of Seismically Isolated Nuclear Power Plant Structures using Lead Rubber Bearing vol.22, pp.2, 2018, https://doi.org/10.5000/EESK.2018.22.2.045