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Numerical Analysis of Reinforced Concrete and Steel-Fiber Concrete Elements under Fatigue Loading
| 题名： | Numerical Analysis of Reinforced Concrete and Steel-Fiber Concrete Elements under Fatigue Loading |
| 正文语种： | 英文 |
| 作者： | Benard Isojeh, Ph.D., P.Eng.1; Maria El-Zeghayar, Ph.D.2; Frank J. Vecchio, Ph.D., P.Eng., M.ASCE3 |
| 作者单位： | 1Ph.D. Candidate, Dept. of Civil Engineering, Univ. of Toronto, Toronto, ON, Canada M5S 1A4 (corresponding author). 2Civil Engineer, Renewable Power Business Unit, Hatch Ltd., 4323 Queen St., Niagara Falls, ON, Canada L2E 2K9. 3Professor, Dept. of Civil Engineering, Univ. of Toronto, Toronto, ON,Canada M5S 1A4. |
| 关键词： | fatigue；literature；analysis；loading；deform；algorithm；element；prediction；structure；correlation |
| 摘要： | The implementation of fatigue-damage models into the governing equations of the disturbed stress field model algorithm for fatigue analysis of reinforced concrete structures is presented in this paper. The models account for concrete deterioration, localized reinforcement crack growth, and accumulation of irreversible compressive strain in conventional reinforced concrete and steel-fiber reinforced concrete due to fatigue loading. As such, analyses involving fatigue damage can be expressed in terms of the deformation evolution and residual capacity. These concepts overcome the well-known limitations of stress-life models for fatigue analysis of reinforced concrete structures. The implementation concepts using robust models from the literature are described. As a means of further illustration, the solutions to the deformation of a shear element under pure shear fatigue loading are presented. The validation of the modified algorithm using finiteelement analysis with experimental results for fatigue life and residual strength prediction gave good correlation. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 11 |
| 页码： | 1-20 |
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