한국지진공학회논문집 (Journal of the Earthquake Engineering Society of Korea)

  • 제3권3호
  • /
  • Pages.33-44
  • /
  • 1999
  • /
  • 1226-525X(pISSN)
  • /
  • 2234-1099(eISSN)
한국지진공학회 (Earthquake Engineering Society of Korea)
권호 표지

에너지에 근거한 철근콘크리트 구조물의 내진성능 평가 I - 휨요소

Energy-Based Seismic Evaluation of Reinforced Concrete Structures I - Flexural Components

  • 김장훈 (아주대학교 환경도시공학부)
  • 발행 : 1999.09.01
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⟨ 이전 논문 다음 논문 ⟩

초록

지진의 시간적인 요인, 즉 반복하중효과와 이에 따른 누적소성변위를 고려하기 위하여 에너지 평형에 근거한 해석방법이 개발되었다 본 논문에서는 내진 설계되지 않은 골조 기둥의 파괴유형에 주목하고자 한다. 이를 위하여 기둥의 휨강도저감모델이 제안되는데 파괴유형별로는 콘크리트에의한 파괴 주근의 부착/정착강도 파괴 및 저사이클피로에 의한 주근의 파단등을 고려하였다 에너지에 근거한 모델에 의하여 예측된 응답과 실험결과를 비교하였으며 이론과 실험간의 응답과 파괴유형이 서로 매우 가까움을 확인하였다.

An energy balance procedure is developed to incorporate the effects of earthquake duration which involves the effect of cyclic loading and the corresponding cumulative plastic deformation. Particular emphasis is given to the flexural failure of non-seismically designed columns of reinforced concrete frames. For this, conceptual strength deterioration models for columns, governed by concrete, anchorage failure and longitudinal steel fracture due to low-cycle fatigue, are proposed. It is evident that the energy-based method has good agreement with the experimental data and is able to predict the failure mode.

키워드

참고문헌

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