Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Analysis of Seismic Response According to Installation Location of Seismic Isolation System Applied to High-Rise Building

고층 건물에 적용한 면진 시스템의 설치 위치에 따른 지진 응답 분석

  • Kim, Min-Ju (Department of Architecture, Yeungnam University) ;
  • Kim, Dong-Uk (Department of Architecture, Yeungnam University) ;
  • Kim, Hyun-Su (Div. of Architecture & Civil Engrg., Sunmoon Univ.) ;
  • Kang, Joo-Won (School of Architecture, Yeungnam University)
  • 김민주 (영남대학교 일반대학원 건축학과) ;
  • 김동욱 (영남대학교 일반대학원 건축학과) ;
  • 김현수 (선문대학교 건축사회환경학부) ;
  • 강주원 (영남대학교 건축학부)
  • Received : 2018.08.22
  • Accepted : 2018.09.05
  • Published : 2018.12.15
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Abstract

Seismic isolation systems have typically been used in the form of base seams in mid-rise and low-rise buildings. In the case of high-rise buildings, it is difficult to apply the base isolation. In this study, the seismic response was analyzed by changing the installation position of the seismic isolation device in 3D high - rise model. To do this, we used 30-story and 40-story 3D buildings as example structures. Historic earthquakes such as Mexico (1985), Northridge (1994) and Rome Frieta (1989) were applied as earthquake loads. The installation position of the isolation device was changed from floor to floor to floor. The maximum deformation of the seismic isolation system was analyzed and the maximum interlaminar strain and maximum absolute acceleration were analyzed by comparing the LB model with seismic isolation device and the Fixed model, which is the base model without seismic isolation device. If an isolation device is installed on the lower layer, it is most effective in response reduction, but since the structure may become unstable, it is effective to apply it to an effective high-level part. Therefore, engineers must consider both structural efficiency and safety when designing a mid-level isolation system for high-rise buildings.

Keywords

References

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