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Unreinforced masonry (URM) buildings were not designed to resist earthquake loads resulting in extensive collapses and should be considered for seismic retrofitting. Engineered cementitious composite ...(ECC) with multiple fine cracks is a cement"-based composite material which exhibits a strain-hardening tensile stress-strain behavior. Improving low tensile strength, strain-softening and brittle behavior of URM walls with such a ductile strain-hardening material was the main motivation of this research work. Two series of tests such as compression and shear tests were conducted on the masonry specimens retrofitted with ECC overlay. It was found out that the shear strength and stiffness of the specimens increased considerably. Also this technique changed the brittle failure mode of URM to a ductile one along with a high deformation capacity. Therefore ECC retrofitting can be considered as one of the suitable methods which improve ductility and in-plane strength of masonry wall.続きを見る
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Mendeley出力
jaud22_p145