Now showing items 1-15 of 15

    • A computational model for progressive cracking in large dams due to the swelling of concrete 

      Cervera Ruiz, Miguel; Oliver Segura, José; Herrero, E.; Oñate Ibáñez de Navarra, Eugenio (1990-09)
      Article
      Open Access
      The paper presents a computational model for the analysis of large concrete gravity dams subjected to severe damage due to internal actions. It has been observed in several operating concrete dams that the combined effects ...
    • A Model for the analysis of concrete dams due to environmental thermal effects 

      Agulló Fité, Luís; Mirambell Arrizabalaga, Enrique; Aguado de Cea, Antonio (Emerald, 1996)
      Article
      Open Access
      In this article, an analytical model is presented for the simulation of the thermal behavior of dams that are subjected to the environmental thermal action during service. The method of solution adopted as well as the ...
    • Análisis numérico de la influencia de la fisuración en el comportamiento de una presa de hormigón 

      Campos, A.; López Garello, Carlos María; Aguado de Cea, Antonio (2012)
      Conference report
      Restricted access - publisher's policy
      This paper introduces a 2D simulation of a cross section of the block 13-14 of Mequinenza Dam, which presents pronounced and uncommon remaining displacements. Joint elements have been included in to the model with a nonlinear ...
    • Banco de datos de presas de hormigón con expansiones 

      Pardo Marín, Félix; Aguado de Cea, Antonio; Agulló Fité, Luís; Buil Sanz, Juan Manuel; Gil, A. (2010-06-21)
      Conference lecture
      Open Access
      El estudio del comportamiento expansivo del hormigón en presas e instalaciones afines a las mismas comprende diferentes actuaciones que inciden de un modo transversal en aspectos que incluyen a los materiales, la tipología ...
    • Damage diagnosis in concrete dams with presented expansive damage based on medical propaedeutics 

      Pardo Bosch, Francesc; Aguado de Cea, Antonio (2017-10)
      Article
      Open Access
      The maintenance of dams is crucial because of their social, environmental, and economic relevance. However, more than 40% of the world’s dams are more than 40 years old. Furthermore, because of their ageing, damage such ...
    • Diagnóstico y análisis estructural de patolgías en presas de hormigón. Aplicación a la presa de Mequinenza 

      Crusells Girona, Miquel (Universitat Politècnica de Catalunya, 2010-06-30)
      Minor thesis
      Open Access
      El objetivo principal de la tesina que se presenta es el estudio del proceso de diagnóstico de patologías en presas de hormigón de acuerdo a tres niveles esenciales: detección de la anomalía, formulación de la hipótesis ...
    • Effects of an internal sulfate attack and an alkali-aggregate reaction in a concrete dam 

      Campos, A.; López Garello, Carlos María; Blanco Álvarez, Ana; Aguado de Cea, Antonio (2018-03)
      Article
      Open Access
      The alkali-aggregate reaction and the internal sulfate attack are two chemical reactions that lead to expansions in concrete structures. The former is one of the main causes of expansions in concrete dams and has been ...
    • Estimation of the modulus of elasticity for dam concrete 

      Vilardell, J.; Aguado de Cea, Antonio; Agulló Fité, Luís; Gettu, Ravindra (Elsevier, 1998)
      Article
      Open Access
      The modulus of elasticity of dam concrete is difficult to determine directly from tests due to the necessity for large specimens and testing machines. In order to study the applicability of simple elastic models for ...
    • External sulfate attack in dam concretes with thaumasite formation 

      Chinchón Payá, S.; Aguado de Cea, Antonio; Nugteren, H. W; Chinchón Yepes, Jose Servando (Instituto Técnico de la Construcción y del Cemento, 2015-01)
      Article
      Open Access
      Concrete core samples extracted from different areas of the Mequinenza Dam (Spain) have been studied and expansive reactions affecting the structure were not found. However, expansive reactions in the concrete of certain ...
    • Propuestas metodológicas para la caracterización de testigos de presas con problemas expansivos 

      Fernández de Castro Suárez, Eduardo E. (Universitat Politècnica de Catalunya, 2012-07)
      Master thesis
      Open Access
      [ANGLÈS] Some of the dams built in the region of Cataluña, have expansive processes that take place within its concrete, which is the case of the Graus dam. In this dam, observed movements are related in previous diagnoses ...
    • Simulación del comportamiento tenso-deformacional de una presa de hormigón frente a variaciones de temperatura y carga hidrostática 

      Cano García, Raúl (Universitat Politècnica de Catalunya, 2013-02-21)
      Minor thesis
      Open Access
      En esta tesina se pretende analizar la respuesta estructural de una presa en arco, más concretamente de la presa de La Baells. Este comportamiento se estudia frente a situaciones propias de su funcionamiento, considerando ...
    • Simulation of construction of RCC dams. I: temperature and aging 

      Cervera Ruiz, Miguel; Oliver Olivella, Xavier; Prato, Tomás (2000-09)
      Article
      Open Access
      The increasing number of roller compacted concrete (RCC) dams being built around the world demands accurate methodologies for the realistic short- and long-term evaluations of the risk of thermally induced cracking in these ...
    • Simulation of construction of RCC dams. II: stress and damage 

      Cervera Ruiz, Miguel; Oliver Olivella, Xavier; Prato, Tomás (2000-09)
      Article
      Open Access
      The increasing number of roller compacted concrete (RCC) dams being built around the world demands accurate methodologies for the realistic short- and long-term evaluations of the risk of thermally induced cracking in these ...
    • Structural diagnosis of a concrete dam with cracking and high non-recoverable displacements 

      Campos, André; López Garello, Carlos María; Blanco Álvarez, Ana; Aguado de Cea, Antonio (2016-10)
      Article
      Open Access
      Expansions in concrete dams may be caused by chemical or physical sources; however in certain occasions the evidences observed in the dam may not be attributed to a single cause. Mequinenza is an example of a concrete dam ...
    • Un modelo para el análisis del comportamiento térmico de presas de hormigón en etapa de explotación 

      Agulló Fité, Luís; Aguado de Cea, Antonio; Mirambell Arrizabalaga, Enrique (1996-07)
      Article
      Open Access
      En este artículo se presenta un modelo numérico desarrollado para la obtención de las temperaturas en la presa frente a la actuación de la acción térmica ambiental. Este constituye un modelo sencillo, el cual contempla la ...