Steel Concrete Composite Beams
Mostrando 25-36 de 42 artigos, teses e dissertações.
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25. Análise teórica e experimental de vigas mistas de aço e concreto e laje com vigotas pré-moldadas e lajotas cerâmicas em um pavimento tipo / Theorical and experimental analysis of composite steel and concrete beams and slabs made by precast elements with lattice and bricks on a frame
As vigas mistas de aço e concreto são elementos estruturais que resultam da associação de um perfil de aço laminado, formado a frio ou soldado, e de uma laje de concreto podendo esta ser moldada in loco, pré-fabricada ou com forma de aço incorporada. A construção de vigas mistas com laje de vigotas pré-moldadas de concreto não é prevista pela nor
Publicado em: 2009
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26. Estudo experimental de sistemas de reforço ao cisalhamento em vigas de concreto armado utilizando-se polímetro reforçado com fibras de carbono (PRFC)
The present work studied the behavior of Carbon Fiber Reinforced Polymer (CFRP) composite used as strengthening and rehabilitating structural material in reinforced concrete (RC) beams submitted to shear stress. The current state of the knowledge related to this issue is presented, and different conceptual and design models for shear strengthening of RC beam
Publicado em: 2008
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27. Avaliação do comportamento mecânico ao cisalhamento de conectores de barras de aço com ganchos em vigas mistas de madeira laminada colada e concreto
The main objective of this work was to propose a reference specimen for the push-out test of rod-type fasteners in timber-concrete connections. The following experimental tests have been performed in order to achieve the goals of this research: pull-out tests of bonded-in steel rods in wood specimens, pull-out tests of bonded-in steel rods in concrete specim
Publicado em: 2008
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28. Análise teórica e experimental de conectores de cisalhamento e vigas mistas constituídas por perfis de aço formados a frio e laje de vigotas pré-moldadas / Theoretical and experimental analysis of shear connectors and composite beams constituted of cold-formed steel beams and floor system with lattice girder beams
In Brazil, the lack of hot-rolled members and high cost of welded steel beams have increased the use of composite beams made of cold-formed steel beams and floor system with lattice girder beams, whose structural behavior is not perfectly understood. Although this system is similar to the one composed of hot-rolled steel beams and concrete slabs, it is impor
Publicado em: 2007
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29. Contribution for the design of multiple storey buildings with composite elements steel-concrete / Contribuição para o projeto e dimensionamento de edifícios de múltiplos andares com elementos estruturais mistos aço-concreto
Este trabalho objetivou o estudo dos edifícios de múltiplos andares constituídos por elementos mistos aço-concreto, com enfoque acadêmico, porém abordando aspectos e recomendações normativas diretamente aplicadas na prática corrente da engenharia estrutural. A revisão bibliográfica foi realizada com base em estudos acadêmicos e normativos além d
Publicado em: 2007
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30. Reforço à flexão de vigas de concreto armado com manta de polímero reforçado com fibras de carbono (PRFC) aderido a substrato de transição constituído por compósito cimentício de alto desempenho / Flexural strengthening of reinforced concrete beams with carbon fibers reinforced polymer (CFRP) sheet bonded to a transition layer of high performance cement-based composite
A técnica caracterizada pela colagem de polímeros reforçados com fibras de carbono (PRFC) em elementos estruturais de concreto vem sendo aplicada com sucesso no reforço de estruturas em todo o mundo. Resistência à corrosão, elevada resistência à tração, baixo peso, facilidade e rapidez de aplicação, são algumas das características interessante
Publicado em: 2007
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31. Modelagem numérica de vigas mistas aço-concreto simplesmente apoiadas: ênfase ao estudo da interface laje-viga / Numerical analysis of simple supported steel-concrete composite beam: emphasis on the study of the slab-profile interface
Widely used in civil engineering frameworks, steel-concrete composite beams appear as consequence of the use of steel beams with concrete slab, providing better management of each constituent material properties. To act as a composite element, it is necessary that the slab and the beam work together, aspect obtained by using metallic elements called shear co
Publicado em: 2006
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32. Connections and slab reinforcement of concrete-steel composite beams. / Ligações e armaduras de lajes em vigas mistas de aço e de concreto.
The use of composite steel-concrete beams is increasing in Brazil and in the world, because this is to take advantage of the best properties of each material. Steel has an excellent response to compression and tension and concrete has to compression. Composite beams include basically the steel beam, concrete slab, connectors and reinforcement. Some phenomena
Publicado em: 2006
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33. CONECTOR DE CISALHAMENTO EM PERFIL FORMADO A FRIO: ANÁLISE VIA MODELAGEM COMPUTACIONAL
In a composite system, a steel beam (laminated, welded or cold formed) is associated with a concrete slab, forming a composite beam. The interaction between concrete and steel can be mechanical, by friction or, in some cases, only by adherence. One of the major advantages of the composite beams is the increase in strength and stiffness due to association of
Publicado em: 2006
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34. Análise teórica e experimental de vigas de concreto armadas com barras não metálicas de GFRP / Theoretical and experimental analysis of beams reinforced with non metallic GFRP bars
Steel reinforcement replacement aims an increase at the durability of structures with corrosion and electrical magnetic problems. But, inserting a new material at the civil construction industry demands specifications of its composition, behavior and procedures for its utilization. This work is a flexural behavior analysis of reinforced concrete beams reinfo
Publicado em: 2006
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35. Comportamento de pilares mistos, com ênfase na zona de introdução de cargas
This work presents the study of composite columns with emphasis on local load introduction zones. The main reason of studying local load introduction zones, here named ZIC, or ZICs, is the need of understanding their behavior not easily found in technical literatures. Experimental analysis with 6 (six) real scale models, elasto-plastics analysis of those tes
Publicado em: 2006
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36. A contribution to the study of simply-supported composite steel-concrete beams in ambient temperature and in fire situations / Uma contribuição ao estudo de vigas mistas aço-concreto simplesmente apoiadas em temperatura ambiente e em situação de incêndio
Composite steel-concrete beam have been commonly considered in steel-framed building used in civil engineering, not only in Brazil but also in the worldwide context. The efficiency of this structural element is directly related with the type of interaction between steel beam and concrete slab, which is assured using metallic elements called shear connectors,
Publicado em: 2004