Abstract
The bond between reinforcing bars and the surrounding concrete is one of the dominant mechanisms affecting the structural behaviour of fiber-reinforced polymer (FRP)-reinforced concrete structures. In this chapter, the experimental and numerical studies on the bond mechanism between FRP rebars and concrete in FRP-reinforced concrete beams are presented. Concrete beams reinforced with three types of FRP rebars with different rebar surfaces were tested under four-point bending loads to investigate the effects of types and surface conditions of FRP rebars on the bond-slip behaviour of reinforced concrete beams. A new finite element model recently developed and validated by the authors was employed to numerically investigate the bond-slip behaviour of FRP-reinforced concrete beams and the effects of different rebar surfaces and different rebar types on the bond-slip behaviour. The results are presented and the toughening mechanism between FRP rebars and concrete is analyzed.
| Original language | English |
|---|---|
| Title of host publication | Toughening Mechanisms in Composite Materials |
| Editors | Qinghua Qin, Jianqiao Ye |
| Place of Publication | U.K. |
| Publisher | Elsevier |
| Pages | 373-392 |
| Number of pages | 20 |
| ISBN (Electronic) | 9781782422914 |
| ISBN (Print) | 9781782422792 |
| Publication status | Published - 2015 |
Keywords
- concrete beams
- fiber-reinforced plastics
- reinforcing bars
- sealing (technology)