Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 2000.10b
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- Pages.891-896
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- 2000
The Effects of Shear Capacity on the Locations and Sizes of New Opening in Existing Reinforced Concrete Beams
기존 철근콘크리트 보에서 신설 개구부의 위치와 크기가 전단내력에 미치는 효과
Abstract
It is necessary to drill new opening in an existing R.C beam either for service ducts and pipes or the determination of in place concrete strength. Therefore, to simulate in this study, 18-R.C beams were fabricated with circular openings. The major parameters considered are the sizes, location of opening and cut-off stirrup. These beams are tested shear failure and capacity under a point loading. The sizes of opening are changed 0.11, 0.2, 0.3 times of beam-depth and the locations of opening are divided into
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