Experimental bond tests on masonry panels strengthened by FRP |
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| Affiliation: | 1. DICAM, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy;2. UNICUSANO, Niccolò Cusano University, Via Don Gnocchi 3, Rome, Italy;3. Centre for Applied Research, Buildings and Construction (CIRI-EC), University of Bologna, Via del Lazzaretto 15/5, 40131 Bologna, Italy;1. School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran;2. Wolfson School of Mechanical & Manufacturing Engineering, Loughborough University, Loughborough, UK;3. Loughborough Material Characterization Centre, Material Department, Loughborough University, UK;1. Department of Geosciences, Virginia Tech., Blacksburg, VA, USA;2. Laboratoire de Physique, Ecole Normale Supérieure de Lyon – CNRS, Université de Lyon, France;3. GET, Observatoire Midi-Pyrénées, Toulouse, France;4. BayesMap Solutions, LLC, Castro Valley, CA, USA;5. Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine–Earth Science and Technology (JAMSTEC), Japan;1. Blagoveschensk State Pedagogical University, Blagoveschensk 675002, Russia;2. Amur State University, Blagoveshchensk 675000, Russia;3. Physics Department, St. Petersburg State University, St. Petersburg 198504, Russia;4. Moscow Institute of Physics and Technology, Moscow 141700, Russia;1. Department of Aeronautics, Xiamen University, South Siming Road 422#, Xiamen 361005, People’s Republic of China;2. The State Key Lab of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Yu Dao Street 29#, Nanjing 210016, People’s Republic of China |
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| Abstract: | The results of an experimental campaign on bond between Glass Fiber Reinforced Polymer (GFRP) sheets and single clay brick or masonry panel is presented. Four different types of clay bricks (new and ancient) are considered, where the difference between bricks is not only due to their mechanical properties but also to their surface texture. Another focus point of the experimental campaign is the effect of mortar joints on the GFRP-masonry panel bond. Moreover, the effects of different surface preparations on the debonding load were investigated, concerning both bricks and masonry panels. A total number of 38 specimens was tested and results in terms of debonding force, strain along the GFRP and failure modes are here reported. The experimental results were also compared to design formula proposed by the new version of Italian Guidelines. Furthermore, in order to numerically describe the bond behaviour of the specimens tested, non-linear interface laws were calibrated starting from the debonding load and the measured strains along the GFRP for various loading levels. |
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| Keywords: | A. Glass fibres B. Debonding D. Mechanical testing Masonry |
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