Abstract
The end-anchored CFRP plates or sheets has emerged as a popular method of strengthening reinforced concrete structures. In this study, the interface bond shear stress, relative slip, axial force distribution of the CFRP plate, the overall load-displacement and the load-CFRP plate strain response curve during single-crack debonding process is addressed by means of the cohesive crack model and the Partial-Interaction composite beam theory, by introducing a four-linear bond-slip constitutive model with residual strength to reflect the nonlinear and softening characteristics of deformation compatibility and stress-deformation behavior of interface produced from relative slip between CFRP plate and reinforced concrete beam. It is observed that the theoretical values of structural behavior basically agree with the experimental values, reflecting the actual stress state of concrete beams strengthened by the end-anchored CFRP plates. The results in the present study provide theoretical references for the analysis and design of the concrete beams strengthened by the end-anchored CFRP plates.
| Translated title of the contribution | Nonlinear analysis of IC debonding process for the RC beams strengthened with end-anchored CFRP plates |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 1-11 |
| Number of pages | 11 |
| Journal | Tumu Gongcheng Xuebao/China Civil Engineering Journal |
| Volume | 53 |
| Issue number | 1 |
| State | Published - 1 Jan 2020 |
| Externally published | Yes |
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