Assessment of Ductility and Plastic Hinge Region of Reinforced Concrete Multi-Column Bent

2주형 다주교각의 연성도 및 소성힌지 영역에 관한 연구

  • 변순주 ((주)알피에스스트럭처 기술연구소) ;
  • 임정순 (경기대학교 토목공학과)
  • Published : 2006.09.30

Abstract

In this study, displacement ductility capacity and plastic hinge regions of reinforced concrete multi-column bent with different transverse reinforcement ratio are investigated. The ductility increases remarkably as transverse reinforcement ratio increase and the multi-column bent loaded along transverse direction is more ductile. The plastic hinge length for special detailing requirements of transverse reinforcement is estimated. For high target ductility, plastic hinge length for confinement should be extended with increased transverse reinforcement ratio. The plastic hinge length of multi-column bent loaded along transverse direction is shorter than that along longitudinal direction, because of the different moment distribution.

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