Abstract
The successful validation of a numerical model is presented that can realistically approximate the shear behaviour of reinforced concrete (R/C) rectangular beams strengthened against shear with externally applied open hoop fibre reinforcing polymer (FRP) strips. For this purpose, the measured load-deformation response of ten (10) full-scale R/C beam specimens is utilised. These specimens were loaded monotonically in a four-point bending arrangement up to failure. Open hoop FRP strip shear reinforcement was applied externally to upgrade the shear capacity of eight (8) R/C beam specimens. Four of these specimens had these FRP strips without anchorage, whereas for the other four the FRP strips were attached together with novel anchoring devices. This successful numerical simulation predicts with a very good degree of approximation the observed load-deformation behaviour and the ultimate shear capacity of all these specimens as well as the observed modes of failure including diagonal concrete cracking, debonding of the FRP strips in the case of no anchoring, or the plastification of parts of the anchoring devices plus the adjacent crushing of the concrete.
| Original language | English |
|---|---|
| Pages (from-to) | 47-56 |
| Number of pages | 10 |
| Journal | Advances in Engineering Software |
| Volume | 67 |
| Early online date | 29 Aug 2013 |
| DOIs | |
| Publication status | Published - Jan 2014 |
Keywords
- Experimental behaviour
- Fibre reinforcing plastics
- FRP strip anchoring
- Numerical simulation
- Reinforced concrete beams
- Shear strengthening
ASJC Scopus subject areas
- Software
- General Engineering