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Ingeniería sísmica
versão impressa ISSN 0185-092X
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RUIZ GARCIA, Jorge. Evaluación de la fragilidad basada en distorsión lateral para muros de mampostería confinada. Ing. sísm [online]. 2009, n.80, pp.63-83. ISSN 0185-092X.
This paper introduces drift-based fragility curves developed for confined masonry (CM) walls, which are the main structural component for the lateral load-resisting systems employed in housing dwellings in Latin-America. The drift-based fragility curves were developed for two key damage states associated to the structural performance and reparability of CM walls from experimental results of 118 confined masonry specimens tested under lateral cyclic loading during 18 research programs carry out in Mexico, Chile, Peru, Venezuela and Colombia. In particular, four sources of uncertainty due to specimen-to-specimen, finite-sample, shear stress strength masonry and wall's aspect ratio were included. These fragility curves are very useful for assessing the seismic vulnerability of CM structures and, furthermore, for estimating the earthquake-induced economic losses employing recently proposed methodologies based on aggregating the estimated damage at the component level for a specific structure.