Experimental Techniques for Evaluating Seismic Performance of Base-Isolated Structure

기초격리된 구조물의 내진성능평가를 위한 실험기법

  • 윤정방 (한국과학기술원 토목공학과) ;
  • 정우정 (한국과학기술원 토목공학과) ;
  • 김남식 (현대건설 기술연구소) ;
  • 김두훈 (유니슨 기술연구소 소장)
  • Published : 1997.12.01

Abstract

This paper describes a series of shaking table and pseudodynamic tests for evaluation of seismic performance of base-isolated structures subjected to various seismic earthquake inputs. The main objectives of this study are : (1) evaluation of the effectiveness of base-isolation systems for low-rise structures against severe seismic loads through shaking table tests, (2) verification of the substructuring pseudodynamic test method for the base-isolated structures in comparison with the shaking table test results. In the shaking table test, a quarter scaled three-story structure base-isolated by laminated rubber bearings is tested. In the pseudodynamic test, only the laminated rubber bearing s are tested using the substructuring technique, while the concurrent seismic responses of the superstructure are computed using on-line numerical integration. Comparison with the shaking table test results indicates that the substructuring pseudodynamic test method is very effective for determining the dynamic responses of the base-isolated structure.

References

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