Le comportement des structures en béton armé peut s’avérer extrêmement complexe en cas de dépassement de la limite de fissuration du béton. Le caractère composite du béton armé doit être représenté finement. Pour la simulation des structures industrielles, les modèles numériques employés supposent une relation parfaite entre le béton et les armatures qui non seulement ne prennent pas en compte la complexité de la relation entre les deux matériaux mais aussi ne permet pas de présenter finement les caractéristiques de la fissuration étant directement liée à celle des aciers. Dans la littérature, plusieurs méthodes numériques sont proposées pour étudier finement les caractéristiques de la liaison acier-béton, mais toutes ces méthodes posent des difficultés pour les calculs de structures complexes en 3D. En partant des résultats obtenus dans le cadre de la thèse de Torre-Casanova (2012), une nouvelle formation d’un modèle de liaison acier-béton a été développée pour améliorer les performances et la représentativité (comportement cyclique). Ce nouveau modèle a été validé sur un tirant par comparaison avec une solution analytique et des résultats expérimentaux et également testé à l’échelle structurelle pour simuler le comportement d’un voile en cisaillement. Compte tenu de la difficulté pour caractériser numériquement l’ouverture de fissure en cas de fissuration complexe, une nouvelle méthode de post-traitement a également été développée. Finalement, le développement du comportement cyclique de la loi d’adhérence avec enveloppe non-réduite est intégré dans le modèle de liaison acier-béton pour prendre en compte l’irréversibilité du glissement et le boucle d’hystérésis lors du chargement en charge-décharge ou du chargement cyclique. L’application sur un tirant et sur un voile en cisaillement est également effectuée afin d’investiguer le comportement global et local. / Reinforced concrete structure behavior can be extremely complex in the case of exceeding the cracking threshold. The composite characteristics of reinforced concrete structure should be finely presented. In order to compute the industrial structures, a perfect relation hypothesis between steel and concrete is supposed in which not only the complex phenomenon of the two-material relation is not taken into account, but it is also unable to predict the crack characteristics, which is directly linked to the steel. In literature, several numerical methods are proposed in order to finely study the concrete-steel bond behavior, but these methods give many difficulties in computing complex structures in 3D. With the results obtained in the thesis framework of Torre-Casanova (2012), the new concrete-steel bond model has been developed to improve performances (iteration numbers and computational time) and the representation (cyclic behavior) of the initial one. The new model has been verified with analytical solution of steel-concrete tie and validated with the experimental results and equally tested with the structural scale to compute the shear wall behavior. Because of the numerical difficulty in post-processing the crack opening in the complex crack formation, a new crack opening method is also developed. Finally, the cyclic behavior of the bond law with the non-reduced envelope is adopted and integrated in the new bond model in order to take into account the slip irreversibility and the hysteresis during the cyclic load. The application of the model is carried out on a steel-concrete tie and a shear-wall.

Un évènement Natech est un accident TECHnologique provoqué par l’impact d’un aléa NAturel sur une installation industrielle. Cet accident peut porter atteinte à l’extérieur de l’emprise du site, aux personnes, aux biens ou à l’environnement. L’objectif de ce travail est de mettre au point une méthodologie pour l’analyse et la prévention du risque d’accidents technologiques induits par l’inondation (Natech inondation) d’un site industriel. La méthodologie repose, dans un premier temps, sur une étude des Retours d’Expériences. Il a été identifié que les accidents Natech sont imputables à un rejet de matières dangereuses sur des équipements dits critiques endommagés directement ou indirectement par les eaux d’inondation. Les rejets de matières dangereuses vont amener à trois types d’accidents (incendie, pollution, explosion). Dans un deuxième temps, la méthode MADS-MOSAR a été adaptée à l’application aux accidents Natech inondation. L’analyse a abouti à cinq scénarios génériques d’accident Natech inondation sous forme de cinq nœuds papillons. Une soixantaine de Mesures de Maîtrise de Risque de prévention et de protection ont été identifiées. La validation de la complétude et de la plausibilité des nœuds papillons génériques est effectuée, d’une part, à l’échelle du secteur d’activité de traitement de surface et, d’autre part, à l’échelle spécifique d’établissements industriels. Ce travail a abouti à un outil de diagnostic de la vulnérabilité d’une installation industrielle aux accidents Natech inondation, accompagné d’un catalogue de MMR. Enfin, ce diagnostic a été appliqué sur un site industriel afin d’évaluer son mode opératoire et de l’enrichir par l’expérimentation. / A Natech accident is the impact of a NAtural event on an industrial plant (such as an ICPE- Classified Installation for the Environmental Protection). The impact can trigger a TECHnological accident, damaging the vicinity of the industrial facility (inhabitants, their properties and the environment). The final objective of this work is to develop a risk analysis methodology for the prevention of technological accidents triggered by flooding of industrial facilities. Therefore, the work begins with an analysis of past technological accidents triggered by floods. Thus, it was identified that Natech accidents are the consequences of hazardous materials releases from critical equipment, which in turn are damaged directly and indirectly by flood waters. Depending on the type of hazardous substances released, three categories of technological accidents are observed (fire, pollution and explosion). Afterwards, a risk analysis methodology was developed. It is mainly based on the MADS-MOSAR method, which was modified in order to be adapted to the Natech issue. The analysis resulted in the identification of five generic scenarios of technological accidents triggered by floods that can occur within an industrial installation. These scenarios were represented using the bow-tie tool. Then, around sixty preventive and protective measures were identified. The validation of the elaborated scenarios was done, on one hand, in the surface treatment industrial sector and, on the other hand, in two specific industrial facilities. The validation phase helped to test the completeness and plausibility of the generic scenarios, as well as the relevance of the measures previously identified. Furthermore, the validated scenarios were used to develop a checklist helping operators to decrease the vulnerability of their industrial facilities to technological accidents triggered by floods, along with a catalog of preventive and protective measures. Finally, the tool was applied to an industrial installation in order to enhance it and test its relevance by operators.

Esta tese investiga os discursos atuais, presentes no campo da educação e da sociedade em geral, que denunciam, ao mesmo tempo que promovem, a “carência do pai” no exercício da autoridade e nos cuidados da prole.Tais discursos emergem impulsionados pelas novas configurações familiares, recebidas como estranhas e ameaçadoras, podendo causar ruptura nos laços sociais. É possível perceber aí o efeito fantasmático que opera no discurso educativo, que acaba denunciando um fracasso antecipado, como efeito da nostalgia da família tradicional, cada vez mais distanciada de nossa realidade. Para investigar o que produz essa posição de reivindicação de um “pai forte”, nossa pesquisa foi buscar na teoria essas respostas. Buscamos recortar interpretantes do laço social e suas expressões sintomáticas. Para tal, expusemos o tema da função paterna, como surge nas obras de Freud e Lacan, buscando acompanhar sua incidência na estruturação do sujeito, desde o desamparo primordial. Trata-se de uma pesquisa teórica, que tem como questão os sentidos que as novas formas de exercício da função paterna têm para a educação, considerada como laço social. Com Freud, acompanhamos os desdobramentos da função paterna no complexo de Édipo e a abordagem da temporalidade do Édipo em Lacan permitiu situar o pai a partir do registro do imaginário, do simbólico e do real, em referência ao conceito de falo, como significante da falta no Outro. Tematizar a função paterna a partir desses registros permitiu diferenciar a função paterna simbólica da fantasmática presente na dimensão imaginária do pai, esse que é significado como “carente”. Usamos como dado empírico, alguns casos, tomados em sua exemplaridade, na perspectiva do tema da função paterna. A tese indica que, o diálogo da psicanálise com a educação, permite desmistificar construções fantasmáticas, indutoras de uma interpretação última dos sintomas sociais, como essa do discurso da carência paterna. Valer-se da pluralidade dos sentidos da função paterna na educação, é uma forma dos educadores responsabilizarem-se pelo ato educativo, numa posição de abertura às contingências históricas que as vicissitudes dos laços sociais produzem. / This thesis investigates the current discourses present in the education field and in the society in general, that denounce at the same time they promote the “lack of the father” in the authority exercise and the cares of the offspring. Such speeches emerge stimulated for the new familiar configurations, received as strange and threatening, being able to cause break in the social ties. It is possible to note there the fantasized effect that operates in the educative speech denouncing an anticipated failure, as effect of nostalgia of the traditional family, more and more distant from our reality. To investigate what produces this position of claim of a “strong father”, the author searches in the theory these answers. We elect interpreters of the social tie and its symptomatic expressions. For such, we displayed the issue of the paternal function, as it appears in Freud and Lacan works, searching to follow its incidence in the subject structuring, since the primordial abandonment.This work is a theoretical research that focus the senses that the new forms of exercise of the paternal function have for education, considered as social tie. With Freud, we follow the implications of the paternal function in the Oedipus complex and the approach of the temporality of the Oedipus in Lacan allowed to situate the father from the registers of the Imaginary, the Symbolic and the Real , in reference to the concept of phallus, as significant of the lack in the Other. Establishing as a theme the paternal function from these registers allowed to differentiate the symbolic paternal function, of the present fantasized in the imaginary dimension of the father, this that is meant as “lacking”. We use as empirical data, some cases, taken in their exemplarity, in the perspective of the subject of the paternal function. The thesis indicates that, the dialogue of psychoanalysis with education, allows demystifying fantasized inductive constructions of a last interpretation of the social symptoms, as this of the speech of the paternal lack. To use itself the plurality of the directions of the paternal function in education, is a form of the educators to make responsible for the educative act, in a position of opening to the historical contingencies that the vicissitudes of the social ties produce.

Esta tese investiga os discursos atuais, presentes no campo da educação e da sociedade em geral, que denunciam, ao mesmo tempo que promovem, a “carência do pai” no exercício da autoridade e nos cuidados da prole.Tais discursos emergem impulsionados pelas novas configurações familiares, recebidas como estranhas e ameaçadoras, podendo causar ruptura nos laços sociais. É possível perceber aí o efeito fantasmático que opera no discurso educativo, que acaba denunciando um fracasso antecipado, como efeito da nostalgia da família tradicional, cada vez mais distanciada de nossa realidade. Para investigar o que produz essa posição de reivindicação de um “pai forte”, nossa pesquisa foi buscar na teoria essas respostas. Buscamos recortar interpretantes do laço social e suas expressões sintomáticas. Para tal, expusemos o tema da função paterna, como surge nas obras de Freud e Lacan, buscando acompanhar sua incidência na estruturação do sujeito, desde o desamparo primordial. Trata-se de uma pesquisa teórica, que tem como questão os sentidos que as novas formas de exercício da função paterna têm para a educação, considerada como laço social. Com Freud, acompanhamos os desdobramentos da função paterna no complexo de Édipo e a abordagem da temporalidade do Édipo em Lacan permitiu situar o pai a partir do registro do imaginário, do simbólico e do real, em referência ao conceito de falo, como significante da falta no Outro. Tematizar a função paterna a partir desses registros permitiu diferenciar a função paterna simbólica da fantasmática presente na dimensão imaginária do pai, esse que é significado como “carente”. Usamos como dado empírico, alguns casos, tomados em sua exemplaridade, na perspectiva do tema da função paterna. A tese indica que, o diálogo da psicanálise com a educação, permite desmistificar construções fantasmáticas, indutoras de uma interpretação última dos sintomas sociais, como essa do discurso da carência paterna. Valer-se da pluralidade dos sentidos da função paterna na educação, é uma forma dos educadores responsabilizarem-se pelo ato educativo, numa posição de abertura às contingências históricas que as vicissitudes dos laços sociais produzem. / This thesis investigates the current discourses present in the education field and in the society in general, that denounce at the same time they promote the “lack of the father” in the authority exercise and the cares of the offspring. Such speeches emerge stimulated for the new familiar configurations, received as strange and threatening, being able to cause break in the social ties. It is possible to note there the fantasized effect that operates in the educative speech denouncing an anticipated failure, as effect of nostalgia of the traditional family, more and more distant from our reality. To investigate what produces this position of claim of a “strong father”, the author searches in the theory these answers. We elect interpreters of the social tie and its symptomatic expressions. For such, we displayed the issue of the paternal function, as it appears in Freud and Lacan works, searching to follow its incidence in the subject structuring, since the primordial abandonment.This work is a theoretical research that focus the senses that the new forms of exercise of the paternal function have for education, considered as social tie. With Freud, we follow the implications of the paternal function in the Oedipus complex and the approach of the temporality of the Oedipus in Lacan allowed to situate the father from the registers of the Imaginary, the Symbolic and the Real , in reference to the concept of phallus, as significant of the lack in the Other. Establishing as a theme the paternal function from these registers allowed to differentiate the symbolic paternal function, of the present fantasized in the imaginary dimension of the father, this that is meant as “lacking”. We use as empirical data, some cases, taken in their exemplarity, in the perspective of the subject of the paternal function. The thesis indicates that, the dialogue of psychoanalysis with education, allows demystifying fantasized inductive constructions of a last interpretation of the social symptoms, as this of the speech of the paternal lack. To use itself the plurality of the directions of the paternal function in education, is a form of the educators to make responsible for the educative act, in a position of opening to the historical contingencies that the vicissitudes of the social ties produce.

Este trabalho descreve um dormente monobloco de concreto protendido, o qual foi projetado para atender as características de uma via ferroviária brasileira. O dormente apresentou comportamento e resistência semelhantes aos dormentes de concreto comumente fabricados em vários países. A fim de verificar e aprovar o projeto, o dormente foi submetido a ensaios estáticos e dinâmicos, segundo as especificações da norma americana AREMA. Verificado e aprovado o projeto, dezoito dormentes foram fabricados sem e com fibras de aço, no teor de 60 kg/'M POT.3' (aproximadamente 0,75 % por volume). Ensaios estáticos e dinâmicos foram realizados em dormentes com e sem fibras de aço, com o objetivo de quantificar o benefício das fibras de aço à resistência estrutural do dormente. As fibras aumentaram o momento fletor de primeira fissura e o momento último, aumentaram significativamente a força de início de escorregamento dos fios de protensão e reduziram o espaçamento e a abertura das fissuras. As fibras também acrescentaram grande ductilidade aos dormentes e diminuíram a tensão nos fios de protensão, nos estágios mais avançados do carregamento. Sob ação dinâmica, as fibras reduziram a tensão nos fios de protensão mais tracionados em aproximadamente 100%, o que elevou significativamente a resistência do dormente à fadiga. Dormentes fabricados com menor força de protensão apresentaram excelente comportamento plástico e grande ductilidade, especialmente o dormente com fibras / This work describes a prestressed concrete monoblock railway sleeper designed according to a brazilian railway track. The sleeper was tested according to the Arema specifications in order to verify the project. The sleeper presented a structural behavior similar to the concrete railway sleepers used worldwide. After the preliminary tests, eighteen sleepers were manufactured without and with steel fibers contents of 60 Kg/'M POT.3' (about 0.75% by volume) and they were tested under static and dynamic loading to evaluate the fiber contribution on the resistance. Steel fibers increased the first crack and ultimate bending moments, reduced the deflection under ultimate load and increased significantly the slip force of the prestressing tendons. Reinforcing the sleeper with fibers also reduced the crack width and the spacing between cracks, adding higher ductility to the sleepers and decreasing the stress in the prestressing tendons under higher loads. The fibers increased significantly the fatigue strength under cyclic loading, decreasing the stress in the prestressing tendons in about 100%. The test results showed that sleepers manufactured with lower prestressed force have higher toughness, especially those reinforced with steel fibers

Esta tese investiga os discursos atuais, presentes no campo da educação e da sociedade em geral, que denunciam, ao mesmo tempo que promovem, a “carência do pai” no exercício da autoridade e nos cuidados da prole.Tais discursos emergem impulsionados pelas novas configurações familiares, recebidas como estranhas e ameaçadoras, podendo causar ruptura nos laços sociais. É possível perceber aí o efeito fantasmático que opera no discurso educativo, que acaba denunciando um fracasso antecipado, como efeito da nostalgia da família tradicional, cada vez mais distanciada de nossa realidade. Para investigar o que produz essa posição de reivindicação de um “pai forte”, nossa pesquisa foi buscar na teoria essas respostas. Buscamos recortar interpretantes do laço social e suas expressões sintomáticas. Para tal, expusemos o tema da função paterna, como surge nas obras de Freud e Lacan, buscando acompanhar sua incidência na estruturação do sujeito, desde o desamparo primordial. Trata-se de uma pesquisa teórica, que tem como questão os sentidos que as novas formas de exercício da função paterna têm para a educação, considerada como laço social. Com Freud, acompanhamos os desdobramentos da função paterna no complexo de Édipo e a abordagem da temporalidade do Édipo em Lacan permitiu situar o pai a partir do registro do imaginário, do simbólico e do real, em referência ao conceito de falo, como significante da falta no Outro. Tematizar a função paterna a partir desses registros permitiu diferenciar a função paterna simbólica da fantasmática presente na dimensão imaginária do pai, esse que é significado como “carente”. Usamos como dado empírico, alguns casos, tomados em sua exemplaridade, na perspectiva do tema da função paterna. A tese indica que, o diálogo da psicanálise com a educação, permite desmistificar construções fantasmáticas, indutoras de uma interpretação última dos sintomas sociais, como essa do discurso da carência paterna. Valer-se da pluralidade dos sentidos da função paterna na educação, é uma forma dos educadores responsabilizarem-se pelo ato educativo, numa posição de abertura às contingências históricas que as vicissitudes dos laços sociais produzem. / This thesis investigates the current discourses present in the education field and in the society in general, that denounce at the same time they promote the “lack of the father” in the authority exercise and the cares of the offspring. Such speeches emerge stimulated for the new familiar configurations, received as strange and threatening, being able to cause break in the social ties. It is possible to note there the fantasized effect that operates in the educative speech denouncing an anticipated failure, as effect of nostalgia of the traditional family, more and more distant from our reality. To investigate what produces this position of claim of a “strong father”, the author searches in the theory these answers. We elect interpreters of the social tie and its symptomatic expressions. For such, we displayed the issue of the paternal function, as it appears in Freud and Lacan works, searching to follow its incidence in the subject structuring, since the primordial abandonment.This work is a theoretical research that focus the senses that the new forms of exercise of the paternal function have for education, considered as social tie. With Freud, we follow the implications of the paternal function in the Oedipus complex and the approach of the temporality of the Oedipus in Lacan allowed to situate the father from the registers of the Imaginary, the Symbolic and the Real , in reference to the concept of phallus, as significant of the lack in the Other. Establishing as a theme the paternal function from these registers allowed to differentiate the symbolic paternal function, of the present fantasized in the imaginary dimension of the father, this that is meant as “lacking”. We use as empirical data, some cases, taken in their exemplarity, in the perspective of the subject of the paternal function. The thesis indicates that, the dialogue of psychoanalysis with education, allows demystifying fantasized inductive constructions of a last interpretation of the social symptoms, as this of the speech of the paternal lack. To use itself the plurality of the directions of the paternal function in education, is a form of the educators to make responsible for the educative act, in a position of opening to the historical contingencies that the vicissitudes of the social ties produce.

Made available in DSpace on 2014-07-29T15:18:23Z (GMT). No. of bitstreams: 1 ErikaSakai.pdf: 1917728 bytes, checksum: 5cc92bff51598c6d8147b5abba80383d (MD5) Previous issue date: 2010-12-16 / Through studies on the choice of type of foundation to use a certain work, always when the foundation is to pile it is necessary to build another structural element, the block of crowing or also called pile caps. Several studies have been made taking into account the block on stilts without the influence of soil. So this work demonstrates the relationship of methods of calculation of reactions in piles and tensions in chunks of some authors that take into account the influence of soil or not, with the numerical analysis. To analyzethe fundations the program DIANA was used in conjunction with MIDAS / FX +. With these results, ground-structure in the study of these blocks can be concluded on the importance of the interaction, being distinguished that as example, that if the ground are taken in consideration in the analyses of rigid blocks, the biggest reactions if are concentrate near the corners of the block, independent of the type of load application studied and not in the props central offices as some simplified methods consider. This leads to a closer examination of reality and therefore more accurate. / Através de estudos sobre a escolha do tipo de fundação a usar numa determinada obra, sempre quando a fundação for com estaca faz-se necessário a construção de outro elemento estrutural, o bloco de coroamento ou também denominado bloco sobre estacas. Vários estudos foram feitos levando-se em consideração o bloco sobre estacas sem a influência do solo. Portanto este trabalho demonstra a relação de métodos de cálculos de reações nas estacas e tensões nos blocos de estacas envolvidas pelo solo, através de análise numérica baseado no Método dos Elementos finitos, com características tridimensionais e não-lineares. Para a análise foi usado o programa DIANA em conjunto com o MIDAS/FX+. Com os resultados obtidos, pode-se concluir sobre a importância da interação solo estrutura no estudo destes blocos, destacandose que como exemplo, que se o solo é levado em consideração nas análises de blocos rígidos, as maiores reações se concentram nas estacas laterais do bloco, independente do tipo de aplicação de carga estudada e não nas estacas centrais como alguns métodos simplificados propõem. Isto leva a uma análise mais próxima da realidade e, consequentemente, mais preciso.

Introduction: Social networks have shown promise in curbing drug dependency and infectious diseases among marginalized populations. The purpose of this study is to elucidate how relationship strength in social networks is associated with risk behaviours for infectious diseases. Methods: Two reviews were conducted: 1) a systematic review exploring the association between risk behaviours and relationship strength 2) a review on the utilization of respondent driven sampling (RDS). We also analyzed network data to determine the association between recent injection drug use and recent crack use. Results: Our reviews revealed that few studies link relationship strength and risk behaviours; moreover, RDS is effective method of sampling from marginalized populations. Finally, our analysis demonstrated that close relationships are associated with drug use. Conclusion: “Close” relationships are important in arbitrating injection drug use and crack smoking. More research addressing the issues of using data from dynamic social processes and hard-to-reach populations is needed.

To achieve structural integrity in precast concrete systems, connections between elements must be capable to transfer both vertical and horizontal loads which puts high demands on single ties. Hollow-core slabs are often used to stabilize the structural system which puts high demands on the connections between the slab and the buildings stabilizing units. Because of this, the connections need to withstand high tensile and shear forces. The purpose of this report is to investigate the tensile capacity of tie-connections used between hollow-core slabs that are parallel with e.g. stabilizing walls and compare with current design methods. Current design methods suggest that tensile failure will occur in the roof and bottom of the cores which provides low design capacities. Two connections are investigated through full scale pull-out tests where the results are compared with the design methods. The results from testing the tensile capacity show that the failure module occurred as suggested. However, the tests show significantly higher capacity than proposed by the design methods. Eurocodes Design assisted by testing are applied to the test result and a new design method is proposed. Both provides design values that are approximately twice as large as the values suggested in previous design methods.

The diploma thesis deals with the strenghtening of the supporting parts of the production hall in Drásov. In the first part the existing load bearing capacity of the structure is solved. The next step is to design of strenghtening variants for nonconforming columns and short corbel. Columns and short corbel are strenghtening with monostrand. At the end of the thesis, verification of the load bearing capacity of the strenghtening structure is performed.