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Evaluación de la resistencia a cortante en vigas prefabricadas por extursión más losa superior "in situ". Aplicación a la cubierta de la LAV

Authors: Montes Ochoa, Astrid Elena;

Evaluación de la resistencia a cortante en vigas prefabricadas por extursión más losa superior "in situ". Aplicación a la cubierta de la LAV

Abstract

En el proyecto de construcción de la Línea de Alta Velocidad Madrid-Barcelona-Frontera francesa, a su paso por Barcelona, se proyecta la construcción de una cubierta que soterrará las líneas del tren y los viales segregados que van paralelos a éstas. La cubierta de los viales se resuelve con una configuración de viga simplemente apoyada de sección transversal compuesta, en la cual el ala inferior y las almas están formadas por una placa alveolar pretensada y prefabricada por extrusión, y la losa superior es hormigonada “in situ”. La vinculación entre estos dos elementos se logra a través de ganchos que cosen el rasante, y que además ayudan a resistir el cortante. Debido a las características especiales de la viga se valida su respuesta estructural a partir de ensayos de resistencia a flexión y cortante. A partir de los resultados obtenidos en el ensayo de resistencia a cortante se hace una propuesta racional para el mecanismo, a partir del cual, este tipo de vigas resiste el esfuerzo cortante.

Country
Spain
Keywords

:Enginyeria civil [Àrees temàtiques de la UPC], Roofing, Bigues, Reinforced concrete construction, Sostres de formigó, Girders, :Enginyeria civil::Materials i estructures [Àrees temàtiques de la UPC], Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures, Àrees temàtiques de la UPC::Enginyeria civil, Construccions de formigó armat

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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