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Numerical and Finite-Element Analysis of Short Ultrahigh-Performance Fiber-Reinforced Concrete Columns
| 题名： | Numerical and Finite-Element Analysis of Short Ultrahigh-Performance Fiber-Reinforced Concrete Columns |
| 正文语种： | 英文 |
| 作者： | C. Fang1; M. S. Mohamed Ali2; A. H. Sheikh3; M. Singh4 |
| 作者单位： | 1Ph.D. Candidate, School of Civil, Environmental and Mining Engineering, Univ. of Adelaide, Adelaide, SA 5005, Australia (corresponding author). 2Senior Lecturer, School of Civil, Environmental and Mining Engineering, Univ. of Adelaide, Adelaide, SA 5005, Australia. 3Associate Professor, School of Civil, Environmental and Mining Engineering, Univ. of Adelaide, Adelaide, SA 5005, Australia. 4Ph.D. Candidate, School of Civil, Environmental and Mining Engineering, Univ. of Adelaide, Adelaide, SA 5005, Australia. |
| 关键词： | Ultrahigh-performance fiber-reinforced concrete (UHPFRC); Short column; Partial-interaction analysis (PI); Finite-element analysis (FEA). |
| 摘要： | This paper describes the development of numerical and finite-element (FE) models for investigating the behaviors of short ultrahigh-performance fiber-reinforced concrete (UHPFRC) columns under concentric or eccentric loading conditions. A generic mechanicbased partial-interaction (PI) approach that is applicable to both flexural and axial members manufactured by conventional fiber-reinforced concrete has been suitably modified to analyze the structural response of the short UHPFRC columns. Moreover, FE modeling was also conducted to study the behaviors of UHPFRC members subjected to different loading conditions. Both models aim to generate load-axial deflection (P-δaxial) or load-midheight deflection (P-δmid) relationships for concentrically or eccentrically loaded columns, as well as a oadmidspan deflection (P-δmid) relationship for a beam subjected to three-point bending. Simulated results display an excellent agreement with test results, and the model can accurately predict the structural response of the UHPFRC columns. To aid in the development of a design guideline for the short UHPFRC columns, a load-moment (P-M) interaction envelope generated by the numerical model is proposed, and it shows a good correlation to the experimental results. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 10 |
| 页码： | 1-17 |
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