Abstract
Almost all reinforced concrete (RC) beams shear-strengthened with externally bonded FRP strips on their sides fail in shear due to debonding of the FRP strips. The bond behaviour between the FRP strips and the concrete substrate therefore plays a crucial role in the failure process of these beams. Despite extensive research over the past decade, there is still a lack of rigorous modelling and understanding of how the debonding of the FRP strips in such a beam propagates and how the debonding process affects its shear behaviour. This paper presents an analytical study on the progressive debonding of FRP strips in such strengthened beams. The complete debonding process is modelled and the contribution of the FRP to the shear capacity of the beam is quantified. The validity of the analytical solution is verified by comparing its predictions with numerical results from a finite element analysis. This analytical treatment also represents a significant step forward in understanding how interaction between FRP strips, steel stirrups and concrete affects the shear resistance of an RC beam shear-strengthened with FRP.
| Original language | English |
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| Title of host publication | Advances and Trends in Structural Engineering, Mechanics and Computation - Proceedings of the 4th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2010 |
| Publisher | CRC Press/Balkema |
| Pages | 1197-1202 |
| Number of pages | 6 |
| ISBN (Print) | 9780415584722 |
| Publication status | Published - 1 Jan 2010 |
| Event | 4th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2010 - Cape Town, South Africa Duration: 6 Sept 2010 → 8 Sept 2010 |
Conference
| Conference | 4th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2010 |
|---|---|
| Country/Territory | South Africa |
| City | Cape Town |
| Period | 6/09/10 → 8/09/10 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Mechanical Engineering