Experimental and numerical study on flexural behavior of ultra-high-performance fiber-reinforced concrete beams with low reinforcement ratios
- Title
- Experimental and numerical study on flexural behavior of ultra-high-performance fiber-reinforced concrete beams with low reinforcement ratios
- Author
- 류두열
- Keywords
- ultra-high-performance fiber-reinforced concrete; reinforcement ratio; flexure; tension-softening curve; sectional analysis
- Issue Date
- 2017-01
- Publisher
- CANADIAN SCIENCE PUBLISHING
- Citation
- CANADIAN JOURNAL OF CIVIL ENGINEERING, v. 44, no. 1, page. 18-28
- Abstract
- Flexural behaviors of reinforced ultra-high-performance fiber-reinforced concrete (UHPFRC) beams were experimentally and numerically investigated in terms of reinforcement ratio. To do this, four UHPFRC beams with different reinforcement ratios (0%-1.71%) were fabricated and tested. Since we focused on the placement technique of the steel reinforcing bars, only a small number of reinforced UHPFRC beams were deliberately considered. Test results indicated that with an increase in the reinforcement ratio, post-cracking stiffness and load carrying capacity were increased, whereas first cracking load was decreased. The cracking behavior was characterized by numerous vertical micro-cracks up to near the peak, followed by crack localization with a gradual decrease in load carrying capacity. The number of cracks and average crack spacing were marginally influenced by the reinforcement ratio. Sectional analysis incorporating a linear compressive model and tension-softening curves obtained from inverse analyses and direct tensile test were performed and verified through comparison with the experimental moment-curvature responses.
- URI
- https://www.nrcresearchpress.com/doi/10.1139/cjce-2015-0384#.XPoLNmZ7l9Ahttps://repository.hanyang.ac.kr/handle/20.500.11754/112474
- ISSN
- 0315-1468; 1208-6029
- DOI
- 10.1139/cjce-2015-0384
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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