Abstract
Over the last few years externally bonded carbon fiber reinforced polymer (CFRP) laminates have become a popular technique for retrofitting reinforced concrete (RC) existing structures. This paper presents an experimental study on 10 RC members externally reinforced with different architectures of CFRP laminates in order to investigate the influence of the composite configurations on the structural behavior of RC members. American guidelines ACI 440.2R and Italian Code CNR-DT 200 are employed for comparison with the experimental results. Numerical models are also developed to simulate the behavior of the FRP-RC members with the aim to investigate the different failure modes observed in various strengthening configurations. One conclusion is that the Italian Code CNR-DT 200 results to be more conservative with respect to ACI 440.2R. Finite element analyses provide good predictions of the experimental evidences in terms of load-deflection, load strain diagrams, and crack distribution and lead to an accurate prediction of the debonding failure and the post-failure response.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 186-194 |
| Number of pages | 9 |
| Journal | Composite Structures |
| Volume | 178 |
| DOIs | |
| State | Published - Oct 15 2017 |
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Keywords
- Experimental results
- Fiber reinforced polymers
- Flexural strengthening
- Numerical analysis
- Reinforced concrete
ASJC Scopus subject areas
- Ceramics and Composites
- Civil and Structural Engineering
Cite this
Influence of width and thickness of composite laminates on the flexural behavior of reinforced concrete beams and slabs. / Turco, Alberto; Bocciarelli, Massimiliano; Nanni, Antonio; Poggi, Carlo.
In: Composite Structures, Vol. 178, 15.10.2017, p. 186-194.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of width and thickness of composite laminates on the flexural behavior of reinforced concrete beams and slabs
AU - Turco, Alberto
AU - Bocciarelli, Massimiliano
AU - Nanni, Antonio
AU - Poggi, Carlo
PY - 2017/10/15
Y1 - 2017/10/15
N2 - Over the last few years externally bonded carbon fiber reinforced polymer (CFRP) laminates have become a popular technique for retrofitting reinforced concrete (RC) existing structures. This paper presents an experimental study on 10 RC members externally reinforced with different architectures of CFRP laminates in order to investigate the influence of the composite configurations on the structural behavior of RC members. American guidelines ACI 440.2R and Italian Code CNR-DT 200 are employed for comparison with the experimental results. Numerical models are also developed to simulate the behavior of the FRP-RC members with the aim to investigate the different failure modes observed in various strengthening configurations. One conclusion is that the Italian Code CNR-DT 200 results to be more conservative with respect to ACI 440.2R. Finite element analyses provide good predictions of the experimental evidences in terms of load-deflection, load strain diagrams, and crack distribution and lead to an accurate prediction of the debonding failure and the post-failure response.
AB - Over the last few years externally bonded carbon fiber reinforced polymer (CFRP) laminates have become a popular technique for retrofitting reinforced concrete (RC) existing structures. This paper presents an experimental study on 10 RC members externally reinforced with different architectures of CFRP laminates in order to investigate the influence of the composite configurations on the structural behavior of RC members. American guidelines ACI 440.2R and Italian Code CNR-DT 200 are employed for comparison with the experimental results. Numerical models are also developed to simulate the behavior of the FRP-RC members with the aim to investigate the different failure modes observed in various strengthening configurations. One conclusion is that the Italian Code CNR-DT 200 results to be more conservative with respect to ACI 440.2R. Finite element analyses provide good predictions of the experimental evidences in terms of load-deflection, load strain diagrams, and crack distribution and lead to an accurate prediction of the debonding failure and the post-failure response.
KW - Experimental results
KW - Fiber reinforced polymers
KW - Flexural strengthening
KW - Numerical analysis
KW - Reinforced concrete
UR - http://www.scopus.com/inward/record.url?scp=85023769064&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85023769064&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2017.06.024
DO - 10.1016/j.compstruct.2017.06.024
M3 - Article
AN - SCOPUS:85023769064
VL - 178
SP - 186
EP - 194
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
ER -