Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/82180
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Type: Journal article
Title: In-plane shear improvement of unreinforced masonry wall panels using NSM CFRP strips
Author: Dizhur, D.
Griffith, M.
Ingham, J.
Citation: Journal of Composites for Construction, 2013; 17(6):1-12
Publisher: American Society of Civil Engineers
Issue Date: 2013
ISSN: 1090-0268
1943-5614
Statement of
Responsibility: 
Dmytro Dizhur, Michael Griffith, and Jason Ingham
Abstract: The large number of earthquake-prone vintage unreinforced masonry (URM) buildings in many seismically active parts of the world results in a need for minimally invasive and cost-effective strengthening techniques to enhance the poor earthquake performance of such buildings. The objective of the research reported here was to investigate the applicability of using near-surface-mounted (NSM) carbon fiber-reinforced polymer (CFRP) strips as a retrofitting technique for improving the in-plane shear strength and displacement capacity of multi-leaf URM walls constructed using solid clay brick masonry. The use of this technique for repairing earthquake damaged URM walls was also investigated. Ten multileaf wall panels measuring approximately 1,200×1,200 mm were constructed using recycled vintage solid clay bricks and retrofitted using NSM CFRP strips with varying reinforcement ratios. These panels were loaded in diagonal compression, and the results were compared with those obtained from testing of nominally identical unretrofitted wall panels constructed using the same materials. In addition, four wall panels extracted from existing buildings were tested in an as-built condition and then later retested after being repaired using the NSM CFRP strip technique. Based on the experimental results it was established that the NSM CFRP strip technique provides a simple and cost effective method for substantially enhancing the shear strength and displacement capacity of understrength or damaged URM wall panels. © 2013 American Society of Civil Engineers.
Keywords: In-plane shear
Retrofitted URM wall panels
Near-surface-mounted (NSM) carbon fiber–reinforced polymer (CFRP) strips.
Rights: © ASCE
DOI: 10.1061/(ASCE)CC.1943-5614.0000400
Published version: http://dx.doi.org/10.1061/(asce)cc.1943-5614.0000400
Appears in Collections:Aurora harvest 4
Civil and Environmental Engineering publications

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