Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Nonlinear Seismic Analysis of Hollow Cast-in-place and Precast RC Bridge Columns with Triangular Reinforcement Details

삼각망 철근상세를 갖는 현장타설 및 조립식 중공 철근콘크리트 교각의 비선형 지진해석

  • Kim, Tae-Hoon (Quality Technology Division, Samsung Construction & Trading Corporation) ;
  • Ra, Kyeong-Woong (Quality Technology Division, Samsung Construction & Trading Corporation) ;
  • Lee, Jae-Hoon (Department of Civil Engineering, Yeungnam University) ;
  • Shin, Hyun Mock (School Civil and Architectural Engineering, Sungkyunkwan University)
  • 김태훈 (삼성물산(주) 건설부문 품질기술실) ;
  • 나경웅 (삼성물산(주) 건설부문 품질기술실) ;
  • 이재훈 (영남대학교 건설시스템공학과) ;
  • 신현목 (성균관대학교 건축토목공학부)
  • Received : 2016.08.01
  • Accepted : 2016.09.05
  • Published : 2016.12.30
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Abstract

The goal of this study was to assess the seismic performance of hollow cast-in-place and precast reinforced concrete bridge columns with triangular reinforcement details. The developed material quantity reduction details are economically feasible and rational, and facilitate shorter construction periods. By using a sophisticated nonlinear finite element analysis program, the accuracy and objectivity of the assessment process can be enhanced. The used numerical method gives a realistic prediction of seismic performance throughout the input ground motions for several hollow column specimens investigated. As a result, triangular reinforcement details were designed to be superior to the existing reinforcement details in terms of required seismic performance.

이 연구는 지진하중을 받는 현장타설 및 조립식 물량저감 중공 철근콘크리트 교각의 내진성능을 파악하는데 그 목적이 있다. 개발된 물량저감 삼각망 철근상세는 경제적이고 합리적이며 공사기간을 단축할 수 있다. 정확하고 올바른 성능평가를 위하여 신뢰성 있는 비선형 유한요소해석 프로그램을 사용하였다. 이용된 해석기법은 조사된 중공 교각 실험체에 대하여 입력지진파에 따라 내진성능을 비교적 정확하게 예측하였다. 그 결과 개발된 삼각망 물량저감 철근상세는 기존 철근상세와 동등 이상의 소요성능을 보임을 확인하였다.

Keywords

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