Evaluation of Seismic Performance of Steel Frame before and after Application of Seismic Isolator

면진 장치 적용 전, 후의 철골조의 내진 성능 평가

  • 김대곤 ((주)대우 건설기술연구소) ;
  • 이상훈 ((주)대우 건설기술연구소 연구원) ;
  • 안재현 ((주)대우 건설기술연구소 책임연구원) ;
  • 박칠림 ((주)대우 건설기술연구소)
  • Published : 1998.03.01

Abstract

The laminated elastomeric bearing and the lead-rubber bearing were designed to isolate one bay-two story steel frame which is designed for only gravity load. The seismic performance is evaluated for the designed steel frame before and after application of these seismic isolators between the super structure and the foundation. These isolators can improve the seismic capacity of the steel frame. Especially, by inserting the lead plug into the center of the laminated elastomeric bearing, the initial stiffness of th bearing can be increased, thus rather large lateral displacement can be prevented under the frequent service lateral load. During the strong earthquake, yielding of the lead can increase the capacity of the energy dissipation.

Keywords

기초분리;납-고무 베어링;내진 성능평가;적층 고무베어링

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