Shear response of brick masonry small assemblages strengthened with bonded FRP laminates for in-plane reinforcement |
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| Affiliation: | 1. Department of Construction Engineering, Universitat Politècnica de Catalunya, Jordi Girona, 1-3, 08034 Barcelona, Spain;2. Autonomous University of Aguascalientes, Avenida Universidad 940, CP 20100, Aguascalientes, Ags, Mexico;1. University of Coimbra, FCT, Department of Civil Engineering, Portugal;2. University of Minho, ISISE, Department of Civil Engineering, Portugal;3. RHI Magnesita, Technology Center Leoben, 8700 Leoben, Austria;1. Department of Civil, Chemical, Environmental and Materials Engineering – DICAM, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy;2. Department of Architecture – DA, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy;3. ISISE, University of Minho, Department of Civil Engineering, Guimarães, Portugal;1. DICAM – Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131 Bologna, Italy;2. DICAM – Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy;1. Institute for Advanced Studies of Pavia IUSS, Piazza della Vittoria 15, 27100 Pavia, Italy;2. Departmentof Civil Engineering and Architecture – DICAr, University of Pavia, Via A. Ferrata 3, 27100 Pavia, Italy;3. European Centre for Training and Research in Earthquake Engineering – EUCENTRE, Via A. Ferrata 1, 27100 Pavia, Italy |
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| Abstract: | Modern composite materials are receiving increasing attention as reinforcing solutions applicable to the repair and strengthening of concrete and masonry structures. Aiming towards a better characterization of the possibilities offered by these materials, the research work reported here investigates the shear response of small masonry assemblages strengthened externally with sheets made of glass and aramid fiber reinforced polymer laminates. An alternative strengthening approach provided by microlaminated wood is also investigated.The assemblages, consisting of masonry couplets, were subjected to combined shear and axial loading and were laid to failure through monotonic and cyclic loading processes. The efficiency of the different strengthening materials is investigated by comparison with measures obtained for unreinforced assemblages subjected to similar load conditions. The research is aimed at characterizing the contribution of the different strengthening materials and arrangements to increase both the peak shear strength and the residual (post-peak) shear strength. An attempt is made to analytically describe the strengthening effect of reinforcement. For this purpose, two different effects provided by the reinforcing laminates – the increase of friction at the brick–mortar interface and the shear strength of the laminate itself – are considered. |
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