Browsing by Subject "Formigó -- Propietats mecàniques"

Now showing items 1-20 of 20

    • A plastic-damage model for concrete 

      Lubliner, Jacob; Oliver Olivella, Xavier; Oller Martínez, Sergio Horacio; Oñate Ibáñez de Navarra, Eugenio (1989)
      Article
      Restricted access - publisher's policy
      In this paper a constitutive model based on an internal variable-formulation of plasticity theory for the non-linear analysis of concrete is presented. The model uses a new yield criterion which matches experimental data ...

    • A thermo-hygro-mechanical model for concrete shrinkage: preliminary study 

      Puig Damians, Ivan; Olivella Pastallé, Sebastià (2018-04-09)
      Research report
      Open Access
      The concrete shrinkage is a common effect of the concrete material behavior during concrete strengthening. The shrinkage is usually a function of the particular concrete material features, its quality, curing process, ...

    • Análisis mesoestructural de la fisuración en procesos expansivos del hormigón 

      Campos, A.; López Garello, Carlos María; Aguado de Cea, Antonio (2011)
      Article
      Restricted access - publisher's policy
      Los procesos reactivos, tales como la reacción álcali-árido, las reacciones de oxidación de sulfuros, el ataque sulfático extemo e interno, etc., provocan en general cambios de volumen diferencial en la estructura interna ...

    • Análisis mesomecánico del hormigón bajo cargas que generan cambios de dirección de fisuración 

      Puiggrós Parayre, Luis Javier; López Garello, Carlos María; Rodríguez, Mariana; Carol, Ignacio (2015)
      Conference report
      Restricted access - publisher's policy
      Para contrastar y comparar el comportamiento de modelos constitutivos del hormigón que tienen en cuenta la anisotropía inducida por fisuración y daño, con frecuencia se ha empleado un test teórico en el cual se impone un ...

    • Caracterització experimental del comportament a primeres edats del formigó 

      Camps i Vila, Ingrid (Universitat Politècnica de Catalunya, 2009-04)
      Minor thesis
      Open Access
      El present document està organitzat de la següent manera. En el primer capítol es fa una introducció sobre la motivació i els objectius de la tesina. En els següents capítols es realitza una síntesis de l’estat del ...

    • Determination of the complete stress-strain response of concrete under uniaxial compression 

      Stephen, Stefie; Zangelmi Júnior, Ernesto; Gettu, Ravindra; Aguado de Cea, Antonio; Kumar, Vaishnav (2021-09)
      Article
      Restricted access - publisher's policy
      The characterization of the complete uniaxial compressive stress-strain curve of concrete is crucial for a more rational and reliable design of concrete structures. However, without intrinsic knowledge of the influence of ...

    • Effect of fine ceramic recycled aggregate (RA) and mixed fine RA on hardened propertiesof concrete 

      Etxeberria Larrañaga, Miren; Vegas, Iñigo (2015-06)
      Article
      Open Access
      The ceramic industry is well known for producing large amounts of rejected ceramic waste. During the construction and demolition waste crushing process, a large amount of fine recycled aggregates (FRA) are usually produced. ...

    • Effect of sustained load on the flexural bearing capacity of polypropylene fibre and minimum steel-bar reinforced concrete beams 

      Tošić, Nikola; Hunger, Martin; Vaquero Martinez, José María; Fuente Antequera, Albert de la (2022)
      Conference report
      Restricted access - publisher's policy
      Macro-synthetic fibres are becoming increasingly attractive as concrete reinforcement in structural applications, polypropylene fibre reinforced concrete, and macro-synthetic fibre reinforced concrete (MSFRC) in general, ...

    • Effects of the mineralogical composition and particle size distribution of ladle furnace slag as a cement/fine aggregate replacement in concrete 

      Araos Henríquez, Paulo Sebastián; Montaño, Thuesman; Valls del Barrio, Susanna; Barra Bizinotto, Marilda; Aponte Hernández, Diego Fernando (2023-01)
      Article
      Open Access
      Ladle furnace slag (LFS) shows excellent potential for valorization. Despite this, landfills are typically its final destination, mainly because of technological barriers in its valorization process. This work examines the ...

    • Ensayo de corte tipo Luong para determinar la resistencia a cortante de concreto 

      Aire, Carlos; Molins i Borrell, Climent; Aguado de Cea, Antonio (2013)
      Conference report
      Restricted access - publisher's policy

    • Estudio de nuevos materiales destinados a la construcción. Estudio y desarrollo experimental de nuevas formulas para la fabricación de hormigón de altas prestaciones UHPC 

      Guevara Fernández, Pablo Javier (Universitat Politècnica de Catalunya, 2019-05)
      Bachelor thesis
      Open Access
      El hormigón como material es el mas utilizado desde hace varios siglos, desde la antigüedad con la simple mezcla de compuestos calcáreos, mezclados con piedras y agua hasta la actualidad con el desarrollo de nuevos aditivos ...

    • Influence of time-dependent restrained strains in the shear response of RC frames 

      Santos Ferreira, Denise Carina; Bairán García, Jesús Miguel; Marí Bernat, Antonio Ricardo (2017-02)
      Article
      Open Access
      Time-dependent strains, when restrained, can lead to important tensile forces and damage, affecting, among other aspects, the shear response and ultimate load carrying capacity of shear-critical RC frames. This paper ...

    • Influència de les condicions de superfície dels àrids en les propietats mecàniques del formigó 

      Algué Torres, Marcel (Universitat Politècnica de Catalunya, 2011-06-29)
      Minor thesis
      Open Access
      En aquesta present tesina s’estudia la influència de les condicions de contorn dels àrids en les propietats mecàniques del formigó, tant convencional com reciclat. Aquest estudi segueix les línies de treball del Departament ...

    • Iterative strategies based on constitutive dissipation 

      Crusat Codina, Laura; Carol, Ignacio (International Centre for Numerical Methods in Engineering (CIMNE), 2021)
      Conference report
      Open Access
      FE formulation of solid mechanics problems typically require iterative strategies to solve the resulting nonlinear system. Basic strategies with prescribed load values, such as the Newton-Raphson method, are not valid in ...

    • Modeling material failure in concrete structures under cyclic actions 

      Faria, R; Oliver Olivella, Xavier; Cervera Ruiz, Miguel (2004-12)
      Article
      Open Access
      A constitutive model devised for the analysis of concrete structures, and suitable for generic two- or three-dimensional applications, is presented and validated. For plain concrete a tension-compression distinguishing ...

    • Resistencia a cortante de elementos sin armadura transversal 

      Pérez Caldentey, Alejandro; Bairán García, Jesús Miguel; Cladera Bohigas, Antoni; Cifuentes, Hector; Domínguez Álvarez, Aurelio; Fernández Montes, David; Izquierdo López, David; Navarro, Juan; Ruiz, Gonzalo; Carmona, Jacinto; Padilla, Patricio; Zanuy, Carlos (Asociación Científico Técnica del Hormigón Estructural, 2016)
      Book
      Restricted access - publisher's policy

    • Rheological behavior of recycled aggregate concrete 

      Barra Bizinotto, Marilda; Aponte Hernández, Diego Fernando; Faleschini, Flora; González Fonteboa, Belen; González Taboada, Iris (Elsevier, 2021)
      Part of book or chapter of book
      Restricted access - publisher's policy
      This chapter presents the rheological study of the two main types of recycled aggregate concrete mixes (normal consistency and self-compacting). The concepts of rheology and its applications to recycled concrete are ...

    • Rotation and redistribution capacity of continuous fibre reinforced beams with varying reinforcement ratios 

      Nogales, Alejandro; Tošić, Nikola; Fuente Antequera, Albert de la (2022)
      Conference report
      Restricted access - publisher's policy
      The addition of fibres in concrete has been proven as a competitive solution for structural purposes, either using simply fibre reinforced concrete (FRC) or combining fibres with traditional steel reinforcement to produce ...

    • Thermo-chemo-mechanical model for concrete. I: hydration and aging 

      Cervera Ruiz, Miguel; Oliver Olivella, Xavier; Prato, Tomás (American Society of Civil Engineers, 1999-09)
      Article
      Open Access
      In this work a coupled thermo-chemo-mechanical model for the behavior of concrete at early ages is proposed. The model allows simulation of the observed phenomena of hydration, aging, damage, and creep. It is formulated ...

    • Thermo-chemo-mechanical model for concrete. II: damage and creep 

      Cervera Ruiz, Miguel; Oliver Olivella, Xavier; Prato, T (American Society of Civil Engineers, 1999-09)
      Article
      Open Access
      In this work a coupled thermo-chemo-mechanical model for the behavior of concrete at early ages is proposed. This paper presents the formulation and assessment of the mechanical aspects of the model. Short- and long-term ...