Structural Engineering and Mechanics

  • 제16권1호
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  • Pages.101-114
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  • 2003
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Structure's base design for earthquake protection numerical and experimental study

  • Alsaif, K. (King Saud University) ;
  • Kaplan, H. (Department of Mechanical Engineering, University of Wisconsin-Madison)
  • 투고 : 2001.02.26
  • 심사 : 2003.02.06
  • 발행 : 2003.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

A base isolation system is proposed for earthquake protection of structures. The system incorporates spherical supports for the base, a specially designed spring-cam system to keep the base rigidly supported under normal condition and to allow it to move for the duration of the earthquake under the constraint of a spring with optimized non-linear characteristics. A single-story model is constructed to investigate the feasibility of the concept. Numerical simulations of the system as well as experimental results show that 95% reduction of the transmitted force to the structure can be achieved. To demonstrate the effectiveness of this isolation mechanism, the maximum dynamic bending stress developed at predetermined critical points within the frame of the structure is measured. Significant reduction of the dynamic stresses is obtained.

키워드

참고문헌

  1. Almazan, J.L. and De La Llera, J.D. (1998), "Modelling aspects of structures isolated with the frictional pendulum system", Earthq. Eng. Struct. Dyn., 27, 845-867. https://doi.org/10.1002/(SICI)1096-9845(199808)27:8<845::AID-EQE760>3.0.CO;2-T
  2. Jahilal, P. and Utku, S. (1996), "Active control in passively base isolated buildings subjected to lower power excitations", Comput. Struct., 66(2-3), 423-440.
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  6. Palazzo, B. and Petti, L. (1994), "Seismic response control in base isolation systems using tuned mass dampers", First World Conf. on Structure Control, Los Angeles, California, USA.
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  8. Wang, Y.P. and Reinhorn, A.M. (1989), "Motion control of sliding isolated structures", Seismic, Shock and Vibration Isolation, edited by Chung, H. and Fujita, T., 181, ASME.
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피인용 문헌

  1. Seismic behaviour of isolated fluid storage tanks: A-state-of-the-art review vol.18, pp.4, 2014, https://doi.org/10.1007/s12205-014-0153-7