JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Experimental Study on Interfacial Behavior of CFRP-bonded Concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Experimental Study on Interfacial Behavior of CFRP-bonded Concrete
Chu, In-Yeop; Woo, Sang-Kyun; Lee, Yun;
  PDF(new window)
 Abstract
Recently, the external bonding of carbon fiber reinforced polymer (CFRP) sheets has come to be regarded as a very effective method for strengthening of reinforced concrete structures. The behavior of CFRP-strengthened RC structure is mainly governed by the interfacial behavior, which represents the stress transfer and relative slip between concrete and the CFRP sheet. In this study, the effects of bonded length, width and concrete strength on the interfacial behavior are verified and a bond-slip model is proposed. The proposed bond-slip model has nonlinear ascending regions and exponential descending regions, facilitated by modifying the conventional bilinear bond-slip model. Finite element analysis results of interface element implemented with bond-slip model have shown good agreement with the experimental results performed in this study. It is found that the failure load and strain distribution predicted by finite element analysis with the proposed bond-slip are in good agreement with results of experiments.
 Keywords
Carbon fiber reinforced polymer (CFRP);Structural composites;Interfacial strength;Finite element analysis (FEA);Stress transfer;
 Language
English
 Cited by
 References
1.
Teng J.G., Chen J.F., Simth S.T., Lam L., "FRP-strengthened RC structures", John Wiley & Sons, 2002

2.
Chen J.F., Teng J.G., "Anchorage strength models for FRP and steel plates bonded to concrete", Journal of Structural Engineering, ASCE, Vol.12, No.7, pp784-91, 2001.

3.
Yao J., Teng J.G., Chen J.F., "Experimental study on FRP-to-concrete bonded joints", Composites-Part B: Engineering, Vol.36, No.2, pp99-113, 2005.

4.
Brosens K., van Gemert D., "Anchoring stresses between concrete and carbon fiber reinforced laminates", Proceedings of 3rd international symposium on non-metallic (FRP) reinforcement for concrete structures, pp271-278, JCI, 1997.

5.
Dai J.G., Ueda T., "Local bond stress slip relations for FRP sheets-concrete interfaces", Proceedings of 6th international symposium on FRP reinforcement for concrete structures, pp143-152, World Scientific Publications, 2003.

6.
Ueda T., Dai J.G., Sato Y., "A nonlinear bond stress-slip relationship for FRP sheet-concrete interface", Proceedings of international symposium on latest achievement of technology and research on retrofitting concrete structures, pp113-120, 2003.

7.
Yuan H., Teng J.G., Seracino R., Wu Z.S., Yao J., "Full-range behavior of FRP-to-concrete bonded joints", Engineering Structures, Vol.26, No.5, pp553-564, 2004. crossref(new window)

8.
Sato Y., Kimura K., Kobatake Y., "Bond Behaviors between CFRP Sheet and Concrete", Journal of Structural and Construction Engineering, Vol.500, pp75-82, 1997 (in Japanese).

9.
Lorenzis L.D., Miller B., Nanni A., "Bond of Fiber-Reinforced Polymer Laminates to Concrete", ACI Material Journal, Vol.98, No.3, pp256-264, 2001.

10.
Yoshizawa H., Wu Z., Yuan H., Kanakubo T., "Study on FRP-Concrete Interface Bond Performance", Transactions Japan Society of Civil Engineers, Vol.662, No.49, pp105-119, 2000.

11.
Nakaba K., Toshiyuki K., Tomoki F., Hiroyuki Y., "Bond Behavior between Fiber-Reinforced Polymer Laminates and Concrete", ACI Structural Journal, Vol.98, pp359-367, 2001.

12.
Sato Y., Asano Y., Ueda T., "Fundamental Study on Bond Mechanism of Carbon Fiber Sheet", Concrete Library International JSCE, Vol.37, pp97-115, 2000.

13.
Leung C.K.Y., Tung W.K., "Three-Parameter Model for Debonding of FRP Plate from Concrete Substrate", Journal of Engineering Mechanics, Vol.132, No.5, pp509-518, 2006. crossref(new window)

14.
Pan J., Leung C.K.Y., "Effect of Concrete Composition on FRP/Concrete Bond Capacity", Journal of Composites for Construction, Vol.11, No.6, pp611-618, 2007. crossref(new window)

15.
Yuan H., Wu Z., Yoshizawa H., "Theoretical Solutions on Interfacial Stress Transfer of Externally Bonded Steel/Composite Plates", Journal of Structural Mechanics and Earthquake Engineering JSCE, Vol.18, No.1, pp27-39, 2001.

16.
Savioa M., Farracuti B., Mazzotti D., "Non-Linear Bond-Slip Law for FRP-Concrete Interface", Proceedings of 6th International Symposium on FRP Reinforcement for Concrete Structures, pp163-172, World Scientific Publications, 2003.