Experimental and numerical study on flexural behavior of ultra-high-performance fiber-reinforced concrete beams with low reinforcement ratios
- Authors
- Yoo, Doo-Yeol; Banthia, Nemkumar; Yoon, Young-Soo
- Issue Date
- 1월-2017
- Publisher
- CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
- Keywords
- ultra-high-performance fiber-reinforced concrete; reinforcement ratio; flexure; tension-softening curve; sectional analysis
- Citation
- CANADIAN JOURNAL OF CIVIL ENGINEERING, v.44, no.1, pp.18 - 28
- Indexed
- SCIE
SCOPUS
- Journal Title
- CANADIAN JOURNAL OF CIVIL ENGINEERING
- Volume
- 44
- Number
- 1
- Start Page
- 18
- End Page
- 28
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/84984
- DOI
- 10.1139/cjce-2015-0384
- ISSN
- 0315-1468
- 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.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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