초고강도 섬유보강 콘크리트 부재의 휨강도 산정Evaluation of Flexural Capacity of Ultra-High Strength Fiber Reinforced Concrete Members
- Other Titles
- Evaluation of Flexural Capacity of Ultra-High Strength Fiber Reinforced Concrete Members
- Authors
- 배백일; 손종민; 최창식; 최현기
- Issue Date
- May-2012
- Publisher
- 대한건축학회
- Keywords
- Ultra-High Strength Concrete; Steel Fiber; Flexural Strength; 초고강도 콘크리트; 강섬유; 휨강도
- Citation
- 대한건축학회논문집 구조계, v.28, no.5, pp.21 - 28
- Indexed
- KCI
- Journal Title
- 대한건축학회논문집 구조계
- Volume
- 28
- Number
- 5
- Start Page
- 21
- End Page
- 28
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/165621
- ISSN
- 1226-9107
- Abstract
- In this study, experiments on ultra-high-strength steel fiber reinforced concrete beams with 2% volume fraction of steel fiber had been conducted. Test was conducted by two point loading with 2,000kN actuator for slender beam specimen. Shear-span to depth ratio was 6 intending the flexural failure. For the flexural design of ultra-high strength fiber reinforced concrete member an empirical equation had been proposed. Improving accuracy of empirical equation, 9 possible stress distributions for concrete section was compared with test results. For the reliability of empirical equation, these models were compared with experiment results conducted with previous researches. As a results of comparative study, the most exact solution was the model that use the real stress distribution of ultra-high strength fiber reinforced concrete. However, more safer prediction was possible using stress block parameters that was proposed by the study results of ultra-high strength concrete and tensile stress distribution that was considered the debonding properties of fiber.
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