Shear-Bond Behavior of the Interface between FRP Profiles and Concrete by the Double-Lap Push Shear Method
Publication: Journal of Composites for Construction
Volume 21, Issue 4
Abstract
This paper focuses on the bonding performance of the interface between fiber-reinforced polymer (FRP) profiles and concrete. The bond shear capacity and the bond shear strength of the wet-bond (WB) interface, the shear-key (SK) interface, and the shear-key combined with wet-bond (SK-WB) interface were investigated via double-lap push shear tests with 15 specimens. Varying numbers of shear keys were adopted in the SK and SK-WB specimens to study the influence of the bonding area of the shear keys. The slip between the FRP profiles and the concrete was measured, and the bond stresses at different points of the test zone were calculated with differential operations. The results show that the average bond strength and the maximum slip of the SK-WB interface are significantly higher than those of the SK interface, whereas the average bond strength and maximum slip of the SK interface are significantly higher than those of the WB interface. A much greater concentration of stress was discovered in the SK interface compared with the SK-WB interface. The capacity load value and the maximum slip value of the double-SK interface are higher than those same values of the single-SK interface. The comparison of bond strength was performed between the FRP profiles-concrete interface and the FRP plate-concrete interface. The results show that the bond strength of the WB interface between the concrete and the FRP profile by the double-lap push shear method is much lower than the bond strength of the WB interface between the concrete and the FRP plate when using the double-lap pull shear method. Finally, the significant difference in the bond strengths is explained using the stress analysis method.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The research was funded by the financial support from the General Program of China Postdoctoral Science Foundation (2013M541994), the National Natural Science Foundation of China (51508519), the Outstanding Young Talent Research Fund of Zhengzhou University (1521322001), the China Scholarship Council (CSC) Foundation (201408410129), and the key scientific research projects of Henan Province for colleges and universities (14B560014, 15A560040).
References
Canning, L., Hollaway, L., and Thorne, A. M. (1999). “An investigation of the composite action of an FRP/concrete prismatic beam.” Constr. Build. Mater., 13(8), 417–426.
El-Hacha, R., and Chen, D. (2012). “Behaviour of hybrid FRP-UHPC beams subjected to static flexural loading.” Compos. Part B. Eng., 43(2), 582–593.
Fam, A., Cole, B., and Mandal, S. (2007). “Composite tubes as an alternative to steel spirals for concrete members in bending and shear.” Constr. Build. Mater., 21(2), 347–355.
Fam, A., and Honickman, H. (2013). “Built-up hybrid composite box girders fabricated and tested in flexure.” Eng. Struct., 32(4), 1028–1037.
Feng, P., Lu, X., and Ye, L. (2011). Application of fiber reinforced polymer in construction: Experiment, theory, and methodology, China Architecture and Building Press, Beijing.
Gonilha, J. A., et al. (2014). “Static, dynamic and creep behaviour of a full-scale GFRP-SFRSCC hybrid footbridge.” Compos. Struct., 118(1), 496–509.
Hulatt, J., Hollaway, L., and Thorne, A. (2003a). “Short term testing of hybrid T beam made of new prepreg material.” J. Compos. Constr., 135–144.
Hulatt, J., Hollaway, L., and Thorne, A. (2003b). “The use of advanced polymer composites to form an economic structural unit.” Constr. Build. Mater., 17(1), 55–68.
Joo, H. J., Lee, S. S., Yoon, S. J., Park, J. K., and Youn, S. G. (2006). “Experimental investigation on the structural behavior of shear connectors used in the FRP and concrete bridge deck system.” Key Eng. Mater., 306–308(2), 1355–1360.
Nordin, H., and Taljsten, B. (2004). “Testing of hybrid FRP composite beams in bending.” Compos. Part B, 35(1), 27–33.
Shao, Y. X., Wu, Z. S., and Bian, J. (2005). “Wet-bond between FRP laminates and cast-in-place concrete.” Int. Symp. on Bond Behaviour of FRP in Structures, International Institute for FRP in Construction, People’s Republic of China, 91–96.
Wang, W., Huang, H., and Zhao, F. (2015). “Experimental study on bonding behavior of GFRP plate and concrete interface based on wet bonding technique.” China Civ. Eng. J., 48(03), 52–60 (in Chinese).
Wang, Y., Hao, Q., and Ou, J. (2007). “Study on bond behavior between FRP sheet with shear key and concrete.” J. Shenyang Jianzhu Univ., 23(4), 533–537 (in Chinese).
Zhang, P. (2011). “Mechanical performance of FRP-concrete composite beams.” Ph.D. thesis, Southeast Univ., Nanjing, China.
Zhang, P., Gao, D., and Zhu, H. (2013). “Numerical simulation and experimental study on the performance of wet-bonding interface between FRP plate and concrete.” China Civ. Eng. J., 46(2), 108–114 (in Chinese).
Zhang, P., Wu, G., Zhu, H., Meng, S. P., and Wu, Z. S. (2014). “Mechanical performance of the wet-bond interface between FRP plates and cast-in-place concrete.” J. Compos. Constr., .
Zhang, P., Zhu, H., Wu, G., Meng, S. P., and Wu, Z. S. (2016). “Shear capacity comparison of four different composite interfaces between FRP plates and concrete substrate.” J. Compos. Constr., .
Zhu, H. T., Zhang, Q. M., Tian, X. Y., and Fang, G. G. (2008). “Analysis on effective bonding length between hybrid fiber reinforced plastics and casting-in-place concrete.” Proc., 10th Int. Symp. on Structural Engineering for Young Experts, Science Press, Beijing, 766–769.
Information & Authors
Information
Published In
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jun 23, 2016
Accepted: Nov 1, 2016
Published online: Feb 13, 2017
Discussion open until: Jul 13, 2017
Published in print: Aug 1, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.