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Application of Hybrid Seismic Isolation System to Realize High Seismic Performance for Low-rise Lightweight Buildings

저층 경량건물의 고성능 내진을 위한 복합면진시스템의 적용

  • 천영수 (한국토지주택공사 토지주택연구원)
  • Received : 2013.02.18
  • Accepted : 2013.04.24
  • Published : 2013.04.30

Abstract

This study presents application effects of hybrid seismic isolation system to realize high seismic performance for low-rise lightweight buildings through a non-linear analysis and onsite experiments. The complex seismic isolation system applied in this study is a method of mixing sliding bearing and laminated rubber bearing in order to overcome limitation of laminated rubber bearing in increasing natural period of the whole seismic isolation system. As a result of the non-linear analysis, seismic isolation buildings designed with complex seismic isolation system are safe because its maximum response displacement is within allowable design displacement even for a strong earthquake which rarely occurs and its maximum response shear is less than design seismic force. As a result of the onsite experiment, the rigidity of seismic isolation stories corresponds to approximately 95.8% of the design equivalent stiffness value. This indicates that actual properties of the whole seismic isolation system correspond to design values.

이 논문에서는 저층 경량건물을 대상으로 고성능 내진을 구현하기 위하여 적용된 복합면진시스템의 적용효과가 비선형해석과 현장실험을 통하여 제시되었다. 이 연구에서 적용된 복합면진시스템은 슬라이딩베어링(sliding bearing)과 적층고무베어링(laminated rubber bearing)을 혼용하는 방법으로 전체 면진시스템의 고유주기를 신장시키는데 있어서 적층고무베어링이 지니는 한계를 극복하기 위한 것이다. 비선형해석결과, 복합면진시스템을 채용하여 설계된 면진건물은 아주 드물게 발생하는 강진에 대해서도 최대응답변위가 허용설계변위 이내이며, 최대응답전단력이 설계지진력 이하이므로 안전하게 유지될 수 있음을 알 수 있었다. 또한 현장실험결과, 면진층의 강성은 설계 등가강성 값의 약 95.8%에 해당하는 값을 나타내 전체 면진시스템의 실제 특성이 설계값과 잘 일치하고 있음을 확인할 수 있었다.

Keywords

References

  1. 주택도시연구원, DRB동일(2005), "면진기법 시험적용 및 성과분석", 대한주택공사.
  2. Toshiyuki, S. (2000), "Comparison of seismic response between bridge with sliding-type base-isolation system and that with laminated rubber bearing", Proceeding of 12WCEE, Paper No.1221.
  3. Gao, X. (2006), "Analysis on the Current State and Tendency of Seismic-isolated Retrofit Technology in China", Proceedings of International Seminar on seismic isolation, Lec. 4: 65-78.
  4. Adriana, G. (2008), "Base isolation in architecture", Proceedings of the 14th World Conference on Earthquake Engineering.
  5. Pan, P., L. P. Ye, W. Shi, H. Y. Cao (2012), "Engineering practice of seismic isolation and energy dissipation structures in China", Science China Technological Sciences, 55(11): 3036-3046. https://doi.org/10.1007/s11431-012-4922-6
  6. Warn, G. P. and K. L. Ryan (2012), "A Review of Seismic Isolation for Buildings: Historical Development and Research Needs", Buildings, 2(3): 300-325. https://doi.org/10.3390/buildings2030300
  7. Higasino, M., N. Kani, Y. Ohta and H. Hamaguchi (2012), "State of the art of the development and application of seismic isolation and energy dissipation technologies for buildings in Japan", Seismic Control Systems, State-of-the-art in Science and Engineering, 59: 208-217.