전단철근이 배치되지 않은 프리스트레스트된 콘크리트 보의 전단강도 평가 = Shear Strength Evaluation of Prestressed Concrete Beams without Shear Reinforcement

다국어 초록 (Multilingual Abstract)

The dual potential capacity model (DPCM) was extended to be suitable for evaluation of the shear strength of prestressed concrete (PSC) members in the previous study. This paper aims to simplify the DPCM for its better application in practice. To this end, a total of 172 shear test results of PSC members without shear reinforcement were collected from existing studies. The collected shear test results include PSC members with various section types and prestressing methods. It appeared that the simplified model could provide a good level of estimation accuracy of shear strength of PSC members, and it was comparable with that provided from the original DPCM.

국문 초록 (Abstract)

이전 연구에서는 전단철근이 배치되지 프리스트레스트 콘크리트 (Prestressed Concrete, PSC) 부재의 전단강도를 평가하기 위하여 이중잠재강도모델 (Dual potential capacity model, DPCM)이 개발되었다. 그러나 기존의 DPCM은 PSC 부재의 전단강도를 산정하기 위하여 복잡한 반복계산이 요구되며, 이 같은 이유로 DPCM의 실무적용이 어려운 실정이다. 이 연구의 목표는 기존의 DPCM을 현행 건축구조설계실무에서 적용할 수 있도록 단순화하는 것이다. 이를 위해 기존 연구로 부터 총 172개의 PSC 부재의 전단실험 결과를 수집하였다. 수집된 전단실험 결과들은 다양한 단면형태와 프레스트레싱 특성을 갖는 PSC 부재들을 포함한다. 이 연구를 제시하는 단순화된 DPCM은 상당한 정확도로 PSC 부재들의 전단강도를 평가할 수 있는 것으로 나타났다.

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