Gotowa bibliografia na temat „Construction en béton armé – Modèles mathématiques”
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Rozprawy doktorskie na temat "Construction en béton armé – Modèles mathématiques"
Sabri, Mohamed. "Contribution à l'analyse de la réponse aux chocs de structures en béton armé". Chambéry, 2006. http://www.theses.fr/2006CHAMS037.
Pełny tekst źródłaIn mountainous regions where the risk of rock falls on structures is significant, one of the current preoccupations is to identify the impact forces and to analyse the damage of impacted structures. The purpose of the presented study is to provide a contribution to the response analysis of reinforced concrete structures under shocks. Three axes have been approached in this study : (i) The direct analysis of impact solicitations. This study is concentrating on developing the shock behaviour equations by means of differential or partial differential equations. The solution of studied problems has been established by developing an analytical method of resolution (the model of double deformable masses) and by finite element method. The developed direct analysis allows, on the one hand, to obtain the displacements, deformations and accelerations fields at shock and, on the other hand, to evaluate the sensibility of direct response to input variables, with a view to the inverse analysis. (ii) The inverse analysis of impact solicitations. This analysis points out the two main difficulties of inverse problems due to dynamic solicitations: on the one hand, the experimentation and real boundary conditions misappreciation problems and, on the other hand, the specific problems related to inverse problem resolution. (iii) The development of simplified models applied to the impact force estimation in the structurally dissipating rock-shed. The work realized in this third part propounds damage and applied forces estimation approach using experimental measurements. The results of this research are applicable in early phase of conception or in pre-project phase where the forces in impacted slabs or beams are analysed in function of geometry
Aitali, Méhéna. "Contribution à l'étude de la fiabilité des poutres hyperstatiques en béton armé". Toulouse, INSA, 1992. http://www.theses.fr/1992ISAT0031.
Pełny tekst źródłaDuprat, Frédéric. "Fiabilité des poteaux d'ossatures en béton armé à noeuds non déplaçables". Toulouse, INSA, 1993. http://www.theses.fr/1993ISAT0029.
Pełny tekst źródłaDubé, Jean-François. "Modélisation simplifiée et comportement visco-endomageable des structures en béton : applications aux séismes et aux choc des ouvrages en béton armé". Cachan, Ecole normale supérieure, 1994. http://www.theses.fr/1994DENS0021.
Pełny tekst źródłaPontiroli, Christophe. "Comportement au souffle des structures en béton armé : analyse expérimentale et modélisation". Cachan, Ecole normale supérieure, 1995. http://www.theses.fr/1995DENS0005.
Pełny tekst źródłaDesprez, Cédric-Arthur. "Analyse et réduction de la vulnérabilité sismique des structures existantes : renforcement par collage de tissus de fibres de Carbone (TFC)". Grenoble INPG, 2010. http://www.theses.fr/2010INPG0115.
Pełny tekst źródłaIn structural engineering, the seismic vulnerability reduction of existing structures is an important issue. Retrofitting by Polymer Reinforced Fibres (FRP) is an interesting response in order to fulfil this aim. This paper presents a simplified modelling strategy to predict the behaviour of reinforced concrete structures upgrade with FRP. A nonlinear finite element method is used, based on multifiber beams with damage and plasticity models. Retrofitting of flexural element (wall, beam) and column confinement are studied. More specifically, a confined concrete constitutive law suitable for monotonic and cycling loadings is proposed. The model is inspired on two well-known concrete laws, one based on damage mechanics theory (La Borderie) and the other based on experimental studies (Eid & Paultre). Validation of the strategy is provided using two case studies: a retrofitted bridge pier and a vulnerability assessment on an existing building trough static (Pushover) and dynamic analysis
Thang, Anh Long. "Évaluation de la dégradation du béton par ondes ultrasonores". Lille 1, 2006. http://www.theses.fr/2007LIL10164.
Pełny tekst źródłaTruong, Ba Tam. "Formulation, performances mécaniques, et applications, d’un matériau TRC pour le renforcement et la réparation de structures en béton/et béton armé : Approches expérimentale et numérique". Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI076/document.
Pełny tekst źródłaThis study, using both experimental and numerical approaches, will help to better understand the behavior of structure strengthened/repaired by composite based on mineral matrix. It especially focuses on the study of a new coating for drinkable water reservoirs without bisphenol A. The main objective of this thesis is development of a mineral matrix composite. Feasibility, performances and behavior of composite are examined. The experimental program involves different levels of analysis. At material level, the formulation and characterization of a mineral matrix are studied. At structure level, the application of this composite for the strengthening and repair of concrete and reinforced concrete structures is considered. A bending experiment on concrete specimens and the study of twelve reinforced concrete beams submitted to four point bending load, allows presenting good disposition in terms of bearing capacity. Secondly, the local analysis highlights the efficacy of the composite to bridge the crack and stop opening propagation. The effect of two different conservation conditions of beams with TRC (immersion in water compared to in air) was studied. The objective is evaluating the pertinence of TRC conserving in the water environment to apply in the concrete water reservoir structure. The effect evaluation of load history of structures on the efficacy strengthened/repaired of TRC composite is presented. It seems that the pre-cracking does not influence on the qualitative and quantitative behavior of the structure. Concerning the numerical approach, this work aims to establish a numerical model of concrete structure and reinforced concrete structure strengthened/repaired by TRC composite materials. The model, which is based on non-linear behavior laws for the constitutive materials (concrete, steel and TRC composite), is compared, at several scales, with experimental results. The good agreement, both qualitative and quantitative, between the model used and the results as expressed in the load-deflection curves validates the proposed model at a global scale. At local level (longitudinal deformation of the steel, deformation of the concrete, deformation of the TRC, cracks opening…) the digital-experimental comparison confirms a good qualitative and, the quantitative agreement. Finally, the parametric study allows to evaluate the influence of the thickness of the composite TRC (indirectly, the reinforcement ratio of beam), and the influence of the pre-cracking configuration on the global and local behavior of the structure
Hemsas, Miloud. "Modélisation par macro-éléments du comportement non-linéaire des ouvrages à voiles porteurs en béton armé sous action sismique : développement de méthodes simplifiées d'analyse dynamique et de vulnérabilité sismique". Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14020.
Pełny tekst źródłaAbstract
Houde, Marie-Josée. "Modélisation de poutres en béton armé endommagées par chargements cycliques : comportement en flexion et en cisaillement". Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24305/24305.pdf.
Pełny tekst źródłaThe objective of this research project is to develop a modeling tool (layer by layer) for the behavior of reinforced concrete members. For flexure, the model relies on the capacity to predict the behavior of a cracked section and also the behavior of the entire bent beam. Damage related to historic loading also applies, including permanent deformations and a diminished rigidity to the material. It is therefore possible to set up an alarm threshold by upgrading the reliability index of the structure which constitutes a complementary tool to telesurveillance or monitoring. An experimental program was setup to obtain results to validate the model with static and cyclic loading of instrumented beams. The comparison between the experimental results and the model predictions shows an excellent agreement for the static loading behavior, even though it is on the safe side of the performance index indicators. The phenomenon is nonetheless favourable for the proposed telesurveillance alarm threshold. Finally, the model can generate a rupture envelop including the interaction between the shear force and bending moment. The use of the modified compression field theory allows the follow-up of the crack inclination and the deformation in the stirrups at rupture. In summary, this prediction tool reveals to be a very useful one to simulate the behavior of reinforced concrete members subjected to shear and bending.
Książki na temat "Construction en béton armé – Modèles mathématiques"
A, Pimanmas, i Okamura Hajime 1938-, red. Nonlinear mechanics of reinforced concrete. New York: Spon Press, 2003.
Znajdź pełny tekst źródłaTetsuya, Ishida, i Kishi Toshiharu 1955-, red. Multi-scale modelling of structural concrete. London: Taylor & Francis, 2008.
Znajdź pełny tekst źródłaY, Cheng Franklin, red. Seismic design aids for nonlinear pushover analysis of reinforced concrete and steel bridges. Boca Raton, FL: CRC Press, 2012.
Znajdź pełny tekst źródłaStructural Dependence of Rotation Capacity of Plastic Hinges in Rc Beams and Slabs. Delft Univ Pr, 1999.
Znajdź pełny tekst źródłaMeschke, Günther, Bernhard Pichler i Jan G. Rots. Computational Modelling of Concrete and Concrete Structures. Taylor & Francis Group, 2022.
Znajdź pełny tekst źródłaMeschke, Günther, Bernhard Pichler i Jan G. Rots. Computational Modelling of Concrete and Concrete Structures. Taylor & Francis Group, 2022.
Znajdź pełny tekst źródłaMeschke, Günther, Bernhard Pichler i Jan G. Rots. Computational Modelling of Concrete and Concrete Structures. Taylor & Francis Group, 2022.
Znajdź pełny tekst źródłaComputational Modelling of Concrete and Concrete Structures. Taylor & Francis Group, 2022.
Znajdź pełny tekst źródłaConcrete at High Temperatures (Concrete Design & Construction). Prentice Hall, 1996.
Znajdź pełny tekst źródłaCheng, Franklin Y., i Jeffrey Ger. Seismic Design Aids for Nonlinear Pushover Analysis of Reinforced Concrete and Steel Bridges. Taylor & Francis Group, 2017.
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