Earthquakes and Structures

  • 제4권6호
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  • Pages.587-606
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  • 2013
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

New approach in design of seismic isolated buildings applying clusters of rubber bearings in isolation systems

  • Melkumyan, Mikayel G. (Armenian Association for Earthquake Engineering)
  • 투고 : 2012.04.04
  • 심사 : 2012.06.08
  • 발행 : 2013.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

The given paper presents a new approach in design of seismic isolation systems of base isolated buildings. The idea is to install not one big size rubber bearing under the columns and/or shear walls, or one by one with certain spacing under the load-bearing walls, but to install a group/cluster of small size bearings, in order to increase the overall effectiveness of the isolation system. The advantages of this approach are listed and illustrated by the examples. Also the results of analyses of some buildings where the approach on installation of clusters of rubber bearings was used in their isolation systems are given for two cases: i) when the analyses are carried out based on the provisions of the Armenian Seismic Code, and ii) when the time history analyses are carried out. Obtained results are compared and discussed. Paper also presents, as an example, detailed analysis and design of the 18-story unique building in one of the residential complexes in Yerevan. Earthquake response analyses of this building were carried out in two versions, i.e. when the building is base isolated and when it is fixed base. Several time histories were used in the analyses. Comparison of the obtained results indicates the high effectiveness of the proposed structural concepts of isolation systems and the need for further improvement of the Seismic Code provisions regarding the values of the reduction factors. A separate section in the paper dedicated to the design of high damping laminated rubber-steel bearings and to results of their tests.

키워드

참고문헌

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  3. Fuller, K., Lim, C., Loo, S., Melkumyan, M. and Muniandy, K. (2000), Design and testing of high damping rubber earthquake bearings for retrofit project in Armenia, earthquake hazard and seismic risk reduction, Kluwer Academic Publishers, The Netherlands, 379-385.
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  7. Melkumyan, M. (2005), "Current situation in application of seismic isolation technologies in Armenia", Proceedings of the Int. Conference dedicated to the 250th anniversary of the 1755 Lisbon Earthquake, Lisbon, Portugal, 493-500.
  8. Melkumyan, M., Gevorgyan, E. and Hovhannisyan, H. (2005), "Application of base isolation to multifunctional multistory buildings in Yerevan, Armenia", Proceedings of the 9th World Seminar on Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures, Kobe, Japan, 2, 119-127.
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  13. The World Bank Implementation Completion Report (1997), .Armenia earthquake reconstruction project, 17255
  14. Whittaker, D. and Robinson, W. (2009), "Progress of application and R&D for seismic isolation and passive energy dissipation for civil and industrial structures in New Zealand", Proceedings of the 11th World Conference on Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures, Guangzhou, China, K04.
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피인용 문헌

  1. Theoretical tensile model and cracking performance analysis of laminated rubber bearings under tensile loading vol.52, pp.1, 2014, https://doi.org/10.12989/sem.2014.52.1.075
  2. The effect of base isolation and tuned mass dampers on the seismic response of RC high-rise buildings considering soil-structure interaction vol.17, pp.4, 2013, https://doi.org/10.12989/eas.2019.17.4.425