973 resultados para Ponte rodoviária


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Ilustração. Dimensão: 5251x2562. Tamanho: 736Kb.

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Na Ilha da Madeira existem diversas pontes antigas essencialmente de alvenaria de pedra e algumas de betão, que constituem um valioso património histórico, que importa conhecer e conservar. As pontes supracitadas pertencem às diversas Estradas Regionais e desempenham um papel importante na deslocação diária de milhares de pessoas entre diversas povoações vizinhas. Estas pontes antigas encontram-se sujeitas a mecanismos de deterioração e a um tráfego mais exigente do que o projetado, evidenciando assim as mais variadas anomalias. Com o intuito de assegurar o seu bom funcionamento e as atuais condições de segurança, deve-se proceder a uma manutenção periódica, sendo para tal necessário recorrer a inspeções regulares. Nesta dissertação realizou-se um levantamento do maior número possível de obras de arte antigas da Ilha da Madeira. Este levantamento consistiu numa inspeção visual e no preenchimento de uma ficha de inspeção previamente realizada, por cada obra de arte. Após o levantamento procedeu-se a uma análise estatística de modo: a caraterizar estas obras de arte, identificar as principais anomalias e o seu estado de conservação e de manutenção globais. Identificou-se ainda algumas soluções típicas de reabilitação. Observou-se que a maioria das obras de arte antigas da Ilha da Madeira que pertencem à rede rodoviária regional são do tipo ponte, sendo constituídas por arcos simples e o material utilizado é essencialmente a alvenaria de pedra e o betão. As principais anomalias identificadas foram de caráter não estrutural, como a presença de vegetação e poluição biológica. Concluiu-se que estas apresentam-se na generalidade bem conservadas, no entanto os trabalhos de manutenção são importantes para manterem o bom funcionamento e segurança das pontes a longo prazo.

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The purpose of this study is to understand what are the matrix elements in which everyday activities of social author/authors, actor/actors and actress/actresses are embedded, in order to carry out the Escola da Ponte s political and pedagogic process (PPP). Thus, the object of this study is to reflect on an experience developed in a public school supported by the Portuguese State within the scenario of institutions that are committed to building up a school of the people by investing in democratization and community participation in their management process. The methodological course of action was targeted at the presuppositions of qualitative research (WOODS, 1999; BURGESS, 1997; MILLS, 1982; OLIVEIRA, 1998; BOGDAN and BIKLEN, 1994; MACEDO, 2000; CASAL, 1996; GEERTZ, 2000), with data collected from random word association (MACHADO and CARVALHO, 2003), the discourse of the interviewed (KAUFMANN, 1996; SILVA, 2006; 2002), observation notes and documents (ELIAS, 1997). Based on a multiple reference and theoretical framework, the investigation revealed elements that are construed as the raw material and pillars supporting the bridge of a school of the people, as well as the self-organization of the school community which emerges as a dimension that binds together all the elements and brings new arrangements into the school dynamics by moving from the individual to the society (DUPUY, 1990). Along this line, the central argument is that in the short and long run the public school quality does not spring from macro educational policies, nor from ephemeral mass-production programs, projects or governmental policies, but from the intent of the professionals working there in becoming authors and characters in the process of building up and carrying out the PPP. The Project has been conceived in the light of the needs and intentionality of the community whose support comes from the participation and social control held by the students families and the community s power to force to action public administration central agencies aiming at having the State fulfill its responsibilities

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It is a case study that reports the construction of metal truss bridge in the river Potengi in Natal, Rio Grande do Norte, between the years 1912 and 1916. From testimonials on steel bridges in Brazil and worldwide including foundations. Documentary research from procurement of projects and contracts was performed. A chronology of construction, with a description of the equipment used and its original budget with the Brazilian government. Still, we used interviews and surveys with experimental sampling / testimonies, laboratory tests. This study aims to analyze historically and technically the Bridge over the River Potengi, emphasizing primarily the construction process, the qualities and characteristics of the materials used and the technological, chemical, mineralogical and microstructural properties of cement and concrete used in its construction. Taking as conclusions that cements pozolônicos ensured a good durability to the concrete in a hundred-year period and that the solution employed with the compressed air caissons was right

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In this work we study the phase transitions of the ferromagnetic three-color Ashkin-Teller Model in the hierarquical lattice generated by the Wheatstone bridge using real space renormalization group approach. With such technique we obtain the phase diagram and its critical points with respective critical exponents v. This model presents four phases: ferromagnetic, paramagnetic and two intermediates. Nine critical points were found, three of which are of Ising model type, three are of four states Potts model type, one is of eight states Potts model type and the last two which do not correspond to any Potts model with integer number of states. iv

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O emprego da trombectomia na angioplastia primária demonstra bons resultados clínicos e angiográficos imediatos, por meio de redução da embolização distal e do fenômeno do no-reflow e otimização da perfusão miocárdica. Essa técnica, principalmente usada em artérias coronárias, em raras oportunidades é descrita quando empregada em pontes de safena aortocoronarianas. Relatamos o caso de um paciente de 67 anos com infarto agudo do miocárdio relacionado a oclusão de ponte de safena e submetido a trombectomia com bons resultados.

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The present work is a study on the functions performed by landmarks landscape Natal / RN in the urban fabric, in the case of Midway Mall, the Portico dos Reis Magos, the Morro do Careca and Newton Navarro Bridge. For such goals established itself as analyze the functionality of the milestones presented here in the urban fabric; discuss the importance of these landmarks of the city landscape in the process of urbanization of Natal, and identify and spatialize actions related to the use of territories where are located landmarks, discussing their reflections. To achieve these goals we chose to use as a literature search procedures, the problematic concept, working with oral sources, and reading speechless. To support this research the main concepts were worked landscape, city, landmark, public space, circuits, among others. After going over the theory, consistent with the empirical data, it appears that the landmarks studied here have different functions and features, but all carry different forms of fascination for the public and visitors to the city, and every man your way, influence the public space, land speculation and feature importance in the process of urbanization of Natal

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)