Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
권호 표지

Aseismatic Retrofit of Concrete Piers with Restraining Steel Ring and Expansive Concrete

구속강판과 팽창콘크리트를 이용한 기존 RC 교각의 내진 보강

  • 최익창 (목포해양대학교 해양토목공학과) ;
  • 박홍용 (명지대학교 SOC공학부) ;
  • 연준희 ((주)대운종합건설기술단 기술실) ;
  • 김연수 ((주)대운종합건설기술단)
  • Published : 2001.11.01
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Abstract

A retrofit method “Steel Ring Confinement Retrofit” was proposed and discussed on the material and member characteristics through experiments. Steel Ring Confinement Retrofit consist of confining steel ring and expansive concrete. The steel ring is set on the footing, surrounding the base of the pier. By placing expansive concrete between the pier and steel ring, chemical prestress is introduced in the members. Chemical prestressed ring concrete enlarge the pier section and enhance both the strength and ductility of the pier. It was confirmed that Various Ring Confinement Retrofit improved the strength of the pier up to 30% ~ 100% with experiments.

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