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A methodology to evaluate the vulnerability and seismic risk of existing building structures in an urban area developed witllin a probabilistic scheme. It uses numerical procedures for the analysis of the non-linear seismic behaviour of structures and optimized sampling method and probabilistic models for the description of the obtained results. Occyrrence probabilities for different damage levels of the structures in risk, corresponding to a giiven exposure period are thus obtained. From ail economical point of view, annual losses and minimum earthquake insurance taxes are evaluated. The proposed method is applied td the assessment of the seismic risk of a complete urban are a, located in the central part bf Barcelona, Spain, in which mostly unreiilforced masonry buildings and non-ductile reinforced concrete buildings are the most common building types. The method has been implemented, in a modular format in a Geographical Inforinatioil System, with the objetive of obtaining sei~micri sk scenarios.
En el artículo se desarrolla, dentro de un marco probabilista, un método para la evaluación del riesgo sísmico de los edificios existentes en una zona urbana. El método utiliza un procedimiento de análisis del comportamiento sísinico no lineal de estructuras, métodos de muestre optimizados y modelos probabilistas, con lo cual permite determinar la probabilidad de ocurrencia de diferentes niveles de daño en las estructuras en riesgo, correspondientes a diferentes períodos de exposición. Desde un punto de vista económico, permite evaluar tasas mínimas de seguros de terremotos. El método propuesto se aplica a una zona central de la ciudad de Barcelona, España, en la cual los principales tipos de edificios son los de mampostería no reforzada y los de hormigón armado, porticados o con forjados reticulares. El il~étodoh a sido integrado en un Sistema de Información Geográfica con el objeto de desarrollar escenarios de riesgo sísmico.
Peer Reviewed
Risc sísmic, Numerical Methods, Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Sismologia, :Enginyeria civil::Geotècnia::Sismologia [Àrees temàtiques de la UPC], Probabilitats -- Càlcul
Risc sísmic, Numerical Methods, Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Sismologia, :Enginyeria civil::Geotècnia::Sismologia [Àrees temàtiques de la UPC], Probabilitats -- Càlcul
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