Browsing by Subject "Concrete dams"
Now showing items 1-19 of 19
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A computational model for progressive cracking in large dams due to the swelling of concrete
(1990-09)
Article
Open AccessThe 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
(Emerald, 1996)
Article
Open AccessIn 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 ... -
A model for the analysis of concrete dams due to environmental thermal effects
(1996-07)
Article
Open AccessIn this article, an analytical model is presented for the simulation of the thermal behaviour of dams that are subjected to 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
(2012)
Conference report
Restricted access - publisher's policyThis 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
(2010-06-21)
Conference lecture
Open AccessEl 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
(2017-10)
Article
Open AccessThe 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
(Universitat Politècnica de Catalunya, 2010-06-30)
Minor thesis
Open AccessEl 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
(2018-03)
Article
Open AccessThe 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
(Elsevier, 1998)
Article
Open AccessThe 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
(Instituto Técnico de la Construcción y del Cemento, 2015-01)
Article
Open AccessConcrete 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 ... -
La evolución de los conglomerantes hidráulicos en presas
(Universitat Politècnica de Catalunya, 2013-02)
Master thesis
Restricted access - author's decisionLa ingeniería de presas ha tenido siempre un objetivo claro, el construir obras de calidad, económicas y durables. En este contexto, numerosas investigaciones han sido desarrolladas buscando nuevos materiales y tecnologías ... -
Mecanismos tridimensionales de rotura en estribos de presas bóveda. Estudio de la seguridad
(Comité Nacional Español de Grandes Presas (SPANCOLD), 1993)
Conference report
Open AccessEn el articulo se describe un procedimiento para la determinación de coeficientes de seguridad frente al deslizamiento de cuñas de roca pertenecientes a los estribos de presas bóveda. La metodología requiere un cálculo ... -
Propuestas metodológicas para la caracterización de testigos de presas con problemas expansivos
(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
(Universitat Politècnica de Catalunya, 2013-02-21)
Minor thesis
Open AccessEn 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
(2000-09)
Article
Open AccessThe 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
(2000-09)
Article
Open AccessThe 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
(2016-10)
Article
Open AccessExpansions 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
(1996-07)
Article
Open AccessEn 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 ... -
Un proyecto para análisis de la seguridad de presas de hormigón un proyecto para análisis de la seguridad de presas de hormigón bajo cargas dinámicas por el método de elementos finitos
(1990)
Conference report
Open AccessEn esta comunicación se presenta un resúmen del proyecto de investigación que están llevando a cabo conjuntamente investigadores del Centro Internacional de Métodos Numéricos en Ingeniería de Barcelona con Ingenieros de ...