Concrete Structures Maintenance
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Geometric optimization associated with the use of high-strength concrete in viaducts
Resumo O Brasil carece de investimentos em infraestrutura rodoviária, uma vez que este é responsável por mais da metade do volume de cargas transportado no território nacional. Quando se aborda o tema de infraestrutura rodoviária, uma das principais variáveis é, sem dúvida, a construção e a manutenção de viadutos. Viadutos em concreto de longarin
Rev. IBRACON Estrut. Mater.. Publicado em: 2019-02
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2. Stochastic Analysis of Flexural Strength of RC Beams Subjected to Chloride Induced Corrosion
Importance of consideration of chloride induced corrosion in service life design of reinforced concrete (RC) structures situated in marine environment is well known. This paper attempts to provide, within the framework of Monte Carlo Simulation, methodologies for durability based service life design of RC members. A methodology using fragility curves is prop
Mat. Res.. Publicado em: 03/11/2015
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3. Estudos das características técnicas e operacionais das galerias de águas pluviais como subsídios para gestão patrimonial e estabelecimento de diretrizes para projetos de sistemas de drenagem urbana
The purpose of this work is to study the emergence and evolution of pathological manifestations in urban stormwater channels and relate them to technical and operational characteristics of concrete structures so that plans for urban drainage systems management are developed, as well as new concepts for stormwater channel projects. The main reference is the D
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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4. Estudo da deterioração de marquises de concreto armado nas cidades de Uberlândia e Bambuí / Study if Deterioration of Constructed Concrete Skyways in the city of Uberlândia and Bambuí
In recent years the number of the constructed concrete marquees with pathological manifestations has grow in Brazil, and consequences have caused them to be structurally weak, which has generally lead to fatalities. As preventive action, it becomes necessary that the projects and construction thereof be improved in quality, that found pathological causes be
Publicado em: 2009
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5. Avaliação de estruturas de edifícios em concreto armado com vistas à reabilitação / Evaluation of building structures in concrete with a view to rehabilitation
With the growing number of serious problems found in the reinforced concrete structures, according to the research on damage done by Dal Molin in 1998 and Andrade 1997, there has been a growing demand for inspections and the maintenance of residential buildings both in Pernambuco and country as a whole. However, it is possible to observe that the practice of
Publicado em: 2008
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6. Building structure of the Central Institute of Sciences of Brasilia University : historical and technological aspects of design, construction, interventions and maintenance recommendations / A estrutura do Instituto Central de Ciências : aspectos históricos e tecnológicos de projeto, execução, intervenções e proposta de manutenção
The objective of this work is to evaluate the current situation of the concrete structure of Central Institute of Sciences (ICC), the larger and older construction of Brasilia University (UnB) Campus, with 720m of length, architectural project by Oscar Niemeyer and structural design by the office of the engineer Sergio Marques de Souza. The study was develop
Publicado em: 2007
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7. Analytical and experimental analysis of bond behavior between concrete and GFRP bars / Análise teórica e experimental do comportamento da aderência entre o concreto e barras de fibra de vidro impregnada por polímero
The use of new materials in civil construction combined with high technology processes leads to improvements in many aspects, like cost reductions and better structural behavior. Recently, due to corrosion of the steel bars, among other factors, many researchers have been suggesting the use of non-metallic bars as a substitution of the steel reinforcement in
Publicado em: 2007
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8. AVALIAÇÃO DA INTEGRIDADE ESTRUTURAL DE PONTES METÁLICAS DA FERROVIA TURÍSTICA OURO PRETO/MARIANA (MG) POR MEIO DE MODELAGEM NUMÉRICA E TÉCNICAS LABORATORIAIS
With the recuperation of the national railroad system in mind, a study of the pathological phenomena that occur in metallic railroad bridges was performed. These phenomena, such as: corrosion, fatigue cracks, loose connections and deformation and/or excessive displacement of the structural elements, are the principal factors responsible for bridge interventi
Publicado em: 2007
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9. Prova de carga em estruturas de concreto / Load proof in concrete structurals
One of the most efficient tests to verify the safety of a structure concluded is a load test. When doubts exist about the stability of a structure, due to factors, among other, as quality of the construction materials, use or inadequate maintenance or even a new use of the construction, different from that initially foreseen in the project, a load test is re
Publicado em: 2006
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10. Structural rehabilitation and reinforcement techniques using steel structures / Técnicas de recuperação e reforço estrutural com estruturas de aço
É provável, que num futuro breve, as atividades da indústria da construção sejam dedicadas em grande parte ao reforço, restauro, reutilização e recuperação de diversos edifícios que, construídos em épocas por vezes não muito distantes, encontram-se hoje em precárias condições de conservação e de segurança. Restauração envolve a realiza�
Publicado em: 2006
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11. Avaliação do grau do dano das estruturas do subsolo de três edifícios situados na Região Metropolitana do Recife / Evaluation of the degree of damage in the subsoil structures of three buildings situated in the Region Metropolitan of Recife/PE
Procurando conhecer o grau de deterioração precoce das estruturas de concreto armado dos edifícios residenciais da Região Metropolitana da Cidade do Recife, Estado de Pernambuco, este trabalho visa, utilizando um método de quantificação dos danos e o uso de ensaios, avaliar as patologias das estruturas estudadas. Estudou-se três edifícios residencia
Publicado em: 2006
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12. Reparo de estruturas de concreto : contribuição ao estudo da aderencia / Repair of concrete structures : contribution to the bond study
The repair section and concrete reinforcement comes presenting important in the industry of the construction for the increase of the work volume in this area. One of the most usual methods of structural repair is the removal of the deteriorated concrete and its repair by means of the connection with other concrete, using products of adherence. However, the n
Publicado em: 2005