Debonding characteristics of masonry structures retrofitted with FRP

Zhuge, Yan and Yeap, Kai (2009) Debonding characteristics of masonry structures retrofitted with FRP. In: 17th Annual International Conference on Composites or Nano Engineering ICCE17, 26 Jul-1 Aug 2009, Honolulu, Hawaii, USA.

Abstract

In recent years engineers proposed to use Fibre Reinforced Polymer (FRP) as a strengthening material to retrofit masonry structures. In order to accurately and conservatively predict the overall capabilities of FRP-strengthened masonry wall, the basic characteristic of shear debonding must be first studied and understood. For shear failures controlled by FRP debonding, stresses in the FRP at failure are controlled by the ultimate bond strength between the FRP and masonry. However, the research in this area is extremely limited for masonry. Hence in this paper, the existing models for estimating FRP strengthened concrete bond capacity due to pure shear are assessed based on a test database of masonry collected from the available literature. The results indicate that the test-to-predicted ratios for all models are generally less conservative although they were performing well when the testing data for concrete was used. A new effective length model was then proposed from this study to improve the accuracy of the model.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Note: Proceedings of this conference published in World Journal of Engineering, Vol 6(Supplement). The version on the journal website is not paginated or otherwise identified. Permanent restricted access to published version due to publisher copyright policy.
Depositing User: Dr Yan Zhuge
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 18 Jun 2011 07:40
Last Modified: 10 Jul 2014 06:03
Uncontrolled Keywords: debonding; FRP; masonry, Direct Shear Test; effective length
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/9298

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