두꺼운 프리스트레스트 중공 슬래브의 전단성능 평가

국문 초록 (Abstract)

PHC 슬래브는 제작특성상 전단철근을 배치할 수 없기 때문에 복부전단에 매우 취약하다. 이에 현행 기준에서는 기존에 수행된 실험적 연구에 근거하여 최소전단철근량이 배치되지 않은 두께 315 mm 이상의 중공을 갖는 부재에 대해 전단강도를 산정할 때 기준에 의해 산정된 전단강도의 1/2 값 이하로 설계하중을 제한하도록 규정하고 있다. 이는 PHC 슬래브의 적용확대에 큰 걸림돌이 되고 있다. 따라서, 이 연구에서는 315 mm 이상의 두께를 갖는 PHC 슬래브의 전단강도 성능실험을 수행하였으며, 이와 더불어 여러 문헌으로부터 실험결과들을 수집하여 현행기준의 전단강도식을 평가하였다.

다국어 초록 (Multilingual Abstract)

Prestressed hollow-core (PHC) slab is disadvantageous in web-shear strength because it is very difficult to provide shear reinforcement due to its unique production method. In current shear design provisions, it is newly regulated that the web-shear capacity of PHC slab members exceeding 315 mm in depth without minimum shear reinforcement should be reduced by half based on recent experimental studies. This new limitation on the PHC slab member becomes an obstacle for the application of PHC slabs in market. Therefore, in this study, the web-shear tests on the PHC slabs with thickness over 315 mm were conducted, and a large number of shear test results on the PHC slab units were collected from literature, by which the shear strength equations in design codes were evaluated.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험적 연구
• 2.1 실험체 계획
• 2.2 실험결과
• 3. 실험결과 분석
• 3.1 국내·외 복부전단강도 기준식
• 3.2 실험체들의 전단강도 평가
• 3.3 복부전단강도 평가
• 4. 결론
• 참고문헌

참고문헌 (Reference)

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