Nuclear Engineering and Technology

  • 제46권5호
  • /
  • Pages.605-618
  • /
  • 2014
  • /
  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
권호 표지
DOI QR코드

DOI QR Code

EFFECTS OF MECHANICAL PROPERTY VARIABILITY IN LEAD RUBBER BEARINGS ON THE RESPONSE OF SEISMIC ISOLATION SYSTEM FOR DIFFERENT GROUND MOTIONS

  • 투고 : 2014.09.29
  • 발행 : 2014.10.25
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The effects of variability of the mechanical properties of lead rubber bearings on the response of a seismic isolation system are investigated. Material variability in manufacturing, aging, and operation temperature is assumed, and two variation models of an isolation system are considered. To evaluate the effect of ground motion characteristics on the response, 27 earthquake record sets with different peak A/V ratios were selected, and three components of ground motions were used for a seismic response analysis. The response in an isolation system and a superstructure increases significantly for ground motions with low A/V ratios. The variation in the mechanical properties of isolators results in a significant influence on the shear strains of the isolators and the acceleration response of the superstructure. The variation provisions in the ASCE-4 are reasonable, but more strict variation limits should be given to isolation systems subjected to ground motions having low A/V ratios. For application of seismic isolation systems to safety-related nuclear structures, the variation in the material and mechanical properties of the isolation system should be properly controlled during the manufacturing and aging processes. In addition, special consideration should be given to minimize the accidental torsion caused by the dissimilarity in the stiffness variations of the isolators.

키워드

참고문헌

  1. F . Naeim and J. M. Kelly, Design of Seismic Isolated Structures: From Theory to Practice, John Wiley & Sons, Inc., New York, NY, USA (1999).
  2. ASCE Standard ASCE/SEI 41-13, Seismic Evaluation and Retrofit of Existing Buildings, American Society of Civil Engineers, Reston, Virginia, USA (2014).
  3. J .C. Da la Llera and J.A. Inaudi, "Analysis of Base- Isolated Buildings Considering Stiffness Uncertainty in the Isolation System," Proc. 5th U.S. National Conference on Earthquake Engineering, Chicago, Illinois, Jul. 10-14, pp. 623-632, 1994.
  4. R .S. Jangid and J.M. Kelly, "Torsional Displacements in Base-Isolated Buildings," Earthquake Spectra, vol. 16, pp. 443-454 (2000). https://doi.org/10.1193/1.1586120
  5. S . Nagarajaiah, A.M. Reinhorn, and M.C. Constantinou, "Torsion in Base-Isolated Structures with Elastomeric Isolation Systems," Journal of Structural Engineering, vol. 119, pp. 2932-2951 (1993). https://doi.org/10.1061/(ASCE)0733-9445(1993)119:10(2932)
  6. A . Tena-Colunga and C. Zambrana-Rojas, "Dynamic Torsional Amplifications of Base-Isolated Structures with an Eccentric Isolation System," Engineering and Structures, vol. 28, pp. 72-83 (2006). https://doi.org/10.1016/j.engstruct.2005.07.003
  7. V . A. Matsagar and R. S. Jangid, "Base-isolated Building with Asymmetries due to the Isolator Parameters," Advances in Structural Engineering, vol. 8, pp. 603-621 (2005). https://doi.org/10.1260/136943305776318365
  8. W . K. Tso, T. J. Zhu, and A. C. Heidebrecht, "Engineering Implication of Ground Motion A/V Ratio," Soil Dynamics and Earthquake Engineering, vol. 11, pp. 133-144 (1992). https://doi.org/10.1016/0267-7261(92)90027-B
  9. H . Sucuoglu, S. Yücemen, A. Gezer, and A. Erberik, "Statistical Evaluation of the Damage Potential of Earthquake Ground Motions," Structural Safety, vol. 20, pp. 357-378 (1998). https://doi.org/10.1016/S0167-4730(98)00018-6
  10. Y. S. Choun, "Sloshing Response of Liquid Storage Tanks Subjected to Earthquakes with Different Peak Acceleration to Velocity Ratios," Proc. 15th World Conference on Earthquake Engineering, Lisboa, Portugal, Sep. 24-28, 2012.
  11. A. Shirazi, "Thermal Degradation of the Performance of Elastomeric Bearings for Seismic Isolation," Ph. D. Dissertation, University of California, San Diego, USA (2010).
  12. M. C. Constantinou, A. S. Whittaker, Y. Kalpakidis, D. M. Fenz, and G. P. Warn, "Performance of Seismic Isolation Hardware under Service and Seismic Loading," MCEER-07-0012, Multidisciplinary Center for Earthquake Engineering Research (2007).
  13. ISO 22762-3, "Elastomeric Seismic-Protection Isolators. Part 3: Applications for Buildings - Specifications," International Standard (2010).
  14. T. A. Morgan, A. S. Whittaker, and A. C. Thompson, "Cyclic Behavior of High-Damping Rubber Bearings," Proc. 5th World Congress on Joints, Bearings and Seismic Systems for Concrete Structures, American Concrete Institute, Rome, Italy, Oct. 7-11, 2001.
  15. H. Gu and Y. Itoh, "Aging Behaviors of Natural Rubber in Isolation Bearings," Advanced Material Research, vols. 163-167, pp. 3343-3347 (2011).
  16. M. Kato, Y. Watanabe, G. Yoneda, E. Tanimoto, T. Hirotani, K. Shirahama, Y. Fukushima, and Y. Murazumi, "Investigation of Aging Effects for Laminated Rubber Bearings of Pelham Bridge," Proc. 11th World Conference on Earthquake Engineering, Paper No. 1450, Acapulco, Mexico, Jun. 23-28, 1996.
  17. H. Hamaguchi, Y. Samejima, and N. Kani, "A Study of Aging Effect on Rubber Bearings After About Twenty Years in Use," Proc. 11th World Conference on Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures, Guangzhou, China, Nov. 17-21, 2009.
  18. I. Shimoda, I. Masayoshi, M. Mochimaru, M. Miyazaki, S. Sakuraba, K. Masuda, and T. Wake, "Survey of Aging for LRB of a Base-Isolated Building Completed 15 Years Ago," PVP-Vol. 486-2, Seismic Engineering - 2004, San Diego, California, Jul. 25-29, 2004.
  19. C. Coladant, "Durability and Aging of Elastomeric Bearings in France," Proc. Int. Post-SMiRT Conference Seminar on Isolation, Energy Dissipation and Control of Vibrations of Structures, Capri (Napoli), Italy, Aug. 23-25, 1993.
  20. P. Labbe, "Pioneering Actual Use of Seismic Isolation for Nuclear Facilities," 1st Kashiwazaki Int. Symposium on Seismic Safety of Nuclear Installations: JNES/EDF Workshop on Seismic Isolation of Nuclear Facilities, Kashiwazaki, Japan, Nov. 24-26, 2010.
  21. AASHTO, "Guide specifications for seismic isolation design," American Association of State Highway and Transportation Officials, Washington, D.C. (1999).
  22. C. W. Roeder, J. F. Stanton, and A. W. Taylor, "Performance of Elastomeric Bearings," Report No. 298, National Cooperative Highway Research Program, Transportation Research Board, Washington, D.C. (1987).
  23. M. C. Constantinou, P. Tsopelas, A. Kasalanati, and E. D. Wolff, "Property Modification Factors for Seismic Isolation Bearings," MCEER-99-0012, Multidisciplinary Center for Earthquake Engineering Research, State University of New York, Buffalo, NY (1999).
  24. O. Hasegawa, I. Shimoda, and M. Ikenaga, "Characteristic of Lead Rubber Bearing by Temperature," Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan, B-2, Structures II, Structural Dynamics Nuclear Power Plants, Architectural Institute of Japan, pp. 511-512, 1997 (in Japanese).
  25. ASCE-4 Draft, Seismic Analysis of Safety-Related Nuclear Structures and Commentary, American Society of Civil Engineers, Reston, Virginia, USA (2013).
  26. Regulatory Guide 1.60, "Design Response Spectra for Seismic Design of Nuclear Power Plants," U.S. Nuclear Regulatory Commission, Washington, D.C. (1973).
  27. N. Naumoski, W. K. Tso, and A. C. Heidebrecht, "A Selection of Representative Strong Motion Earthquake Records having Different A/V Ratios," EERG Report 88-01, Earthquake Engineering Research Group, McMaster University, Hamilton, Ont., Canada (1988). also, http://www.caee.uottawa.ca/Publications/Earthquake%20records/Earthquake%20Records.htm.
  28. Bridgestone Corp., Seismic Isolation Product Line-up, pp. 8-9 (2013).
  29. Y. N. Huang, A. S. Whittaker, R. P. Kennedy, and R. L. Mayes, "Assessment of Base-Isolated Nuclear Structures for Design and Beyond-Design Basis Earthquake Shaking," MCEER-09-0008, Multidisciplinary Center for Earthquake Engineering Research, State University of New York, Buffalo, NY (2009).

피인용 문헌

  1. Novel Slide-Ring Material/Natural Rubber Composites with High Damping Property vol.6, pp.1, 2016, https://doi.org/10.1038/srep22810
  2. An investigation into the effect of temperature-dependent stiffness of rail pads on vehicle-track coupled vibrations vol.231, pp.4, 2017, https://doi.org/10.1177/0954409716631786