철근 콘크리트 교각의 형상비에 따른 거동 특성에 관한 실험적 연구

Experimental study on the Behavior of RC Bridge Piers with Various Aspect Ratio

  • 이대형 (경도대학 건설환경공학과) ;
  • 김훈 (중앙대학교 토목환경공학과) ;
  • 김용곤 (국립한경대학교 안전공학과) ;
  • 정영수 (중앙대학교 토목환경공학과) ;
  • 이재훈 (영남대학교 토목공학과) ;
  • 조준상 (한국도로공사 도로연구소)
  • 발행 : 2001.11.01

초록

Short reinforced concrete bridge piers are particularly susceptible to shear failure as a consequence of the high shear/moment ratio and conservatism in the flexural strength design of existing RC bridge pier, which were constructed before 1992. In addition, shear failure is brittle and involves rapid strength degradation. Inelastic shear deformation is thus unsuitable fur ductile seismic response. It is, however, believed that there are not many experimental research works fur shear failure of the existing RC bridge pier in Korean peninsula subjected to earthquake motions. The object of this research is to evaluate the seismic performance of existing circular RC bridge piers by the quasi-static test. Existing RC bridge piers were moderate seismically designed in accordance with the conventional provisions of Korea Highway Design Specification. This study has been performed to verify the effect of aspect ratio (column height-diameter ratio). Quasi-static test has been done to investigate the physical seismic performance of RC bridge piers, such as lateral force-displacement hysteric curve, envelope curve etc.

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