Double strap joint tests to determine the bond characteristics between CFRP and steel plates

Fawzia, Sabrina, Zhao, Xiao-Ling, Al-Mahaidi, Riadh, & Rizkalla, Sami (2005) Double strap joint tests to determine the bond characteristics between CFRP and steel plates. In Shen, Z.Y., Li, G.Q., & Chan, S.L. (Eds.) Proceedings of the the Fourth International Conference on Advances in Steel Structures, Elsevier, Shanghai, China, pp. 1583-1588.

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Advanced composite materials offer remarkable potential in the upgrade of civil engineering structures. The evolution of CFRP (carbon fibre reinforced polymer) technologies and their versatility for applications in civil constructions require comprehensive and reliable codes of practice. Guidelines are available on the rehabilitation and retrofit of concrete structures with advanced composite materials. However, there is a need to develop appropriate design guidelines for CFRP strengthened steel structures. It is important to understand the bond characteristics between CFRP and steel plates. This paper describes a series of double strap shear tests loaded in tension to investigate the bond between CFRP sheets and steel plates. Both normal modulus (240 GPa) and high modulus (640 GPa) CFRPs were used in the test program. Strain gauges were mounted to capture the strain distribution along the CFRP length. Different failure modes were observed for joints with normal modulus CFRP and those with high modulus CFRP. The strain distribution along the CFRP length is similar for the two cases. A shorter effective bond length was obtained for joints with high modulus CFRP whereas larger ultimate load carrying capacity can be achieved for joints with normal modulus CFRP when the bond length is long enough.

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ID Code: 65233
Item Type: Conference Paper
Refereed: Yes
Keywords: Bond characteristics, Carbon fibre reinforced polymers, CFRP, Double strap joints, Steel plates
DOI: 10.1016/B978-008044637-0/50236-5
ISBN: 9780080446370
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2005 Please consult the authors
Deposited On: 09 Dec 2013 22:34
Last Modified: 20 Aug 2014 23:30

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