{"id":91153,"date":"2018-03-11T10:09:49","date_gmt":"2018-03-11T10:09:49","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-de-estructuras-de-hormigon-armado-expuestas-al-fuego\/"},"modified":"2018-03-11T10:09:49","modified_gmt":"2018-03-11T10:09:49","slug":"analisis-de-estructuras-de-hormigon-armado-expuestas-al-fuego","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/tecnologia-del-hormigon\/analisis-de-estructuras-de-hormigon-armado-expuestas-al-fuego\/","title":{"rendered":"Analisis de estructuras de hormigon armado expuestas al fuego"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Daniel Di Capua <\/strong><\/h2>\n<p>When a structure of reinforced concrete is exposed to a fire, a set of physics-chemical  phenomena both in the concrete and in the steel, are produced. These effects can  compromise the stability of the structure. Among the most important processes is the  spalling phenomenon. There are two possible explanations to the spalling: spalling due  to pore pressure build up (hydraulic spalling) or an excessive increase of compressive  stress produced by restrained thermal expansion. To take into account the hydraulic  spalling in the analysis is necessary to consider a model with the hygral component of  the concrete.    in this thesis a hygro-thermo-mechanical  model is presented. This model allows  representing the general behaviour of the reinforced concrete exposed to high  temperatures and especially to simulate the spalling phenomenon.    a consistent thermodynamic frame is proposed in a first step. Then, the state variables  of the model are derived, and they are used to the government equations development.     once the government equations of the problem are established, the numerical aspects  for the problem resolution are described. For the spatial integration of the problem the  finite elements method is used and the finite differences method is applied for the  temporary integration. A block  iterative scheme for the coupling dealing is proposed.  this methodology is included in a numerical tool specially developed for this work.    for the validation of the proposed model a couple of examples are  present. In these  examples the numerically and experimental obtained results are compared.    finally, a set of application examples are presented. These examples show the capability  of the proposed model to represent the general behaviour of a reinforced concrete  structure exposed to the fire and especially the spalling phenomenon.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Analisis de estructuras de hormigon armado expuestas al fuego<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Analisis de estructuras de hormigon armado expuestas al fuego <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Daniel Di Capua <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 13\/01\/2009<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Eugenio O\u00f1ate Ib\u00e1\u00f1ez De Navarra<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: enrique Mirambell arrizabalaga <\/li>\n<li>Manuel Buron maestro (vocal)<\/li>\n<li>sergio Idelson barg (vocal)<\/li>\n<li>antoni Cladera bohigas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Daniel Di Capua When a structure of reinforced concrete is exposed to a fire, a set of [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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