Formwork
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Study of the influence of compressive strength concrete on columns during the design of a multi-floor building
Resumo Este trabalho tem como objetivo analisar a influência da resistência à compressão do concreto em pilares no dimensionamento de um edifício de múltiplos pavimentos, utilizando a ferramenta computacional CAD/TQS. As resistências dos pilares foram variadas em uma razão de 5 MPa, de 35 MPa até 90 MPa, sendo que os demais elementos estruturais per
Rev. IBRACON Estrut. Mater.. Publicado em: 11/11/2019
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2. Evaluation of the resistance of trussed slabs with steel formwork in cold formed U profile
Abstract In the last decades, the modernization in structural engineering has increased the use of steel-concrete composite and hybrid systems for slabs, when the adherence in the interface of the materials is present or not, respectively. In addition to the traditional steel deck, a similar solution for precast trussed slabs has been used for small construc
Lat. Am. j. solids struct.. Publicado em: 12/08/2019
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3. Waste steel wires modified structural lightweight concrete
Nowadays, the use of different waste fibers in concrete has started to increase rapidly due to some reasons such as economic savings and positive effects on the environment. In this study, waste steel wires taken from reinforcement and formwork which were previously utilized in construction projects, were employed in structural lightweight concrete (SLWC). T
Mat. Res.. Publicado em: 28/07/2014
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4. Impact of vibrations on the final characteristics of normal and self-compacting concrete
The quality and durability of normal concrete directly depends on the number and the shape of voids, so, in order to produce durable concrete, it is necessary to reduce the amount of air that is trapped inside the concrete, which is usually done by vibrating the concrete in the mixing stage or the casting stage. Self-compacting concretes are concretes that,
Mat. Res.. Publicado em: 17/12/2013
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5. Theoretical and experimental analysis of wood I-beams for formwork purpose / Análise teórica e experimental de vigas de madeira de seção transversal "I" para uso em fôrmas para concreto
Due to the importance of wood in construction and the concern about the environmental impact, engineers have worried about the rationalization of its use through the development of engineered products, seeking the improvement of the technical properties. In this study, the I-beams built with reforestation wood were used for concrete formwork purpose. Their m
Publicado em: 2010
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6. Análise experimental de vigas pré-formadas de concreto armado à flexão e ao cisalhamento / Experimental analysis of reinforced concrete preformed beams to bending and shear
Reinforced concrete preformed beams are structural elements which present a thin superficial precast concrete layer that defines their geometrical shapes. This superficial layer functions as a formwork that will be incorporated to the beam after the introduction of cast in loco concrete, which will consolidate the structure. This construction system presents
Publicado em: 2008
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7. Estruturas de concreto arquitetônico - Projeto, execuções e recebimento / Arquitectural concrete structures - Project, Execution and Receiving
O uso do concreto como elemento arquitetônico é uma ferramenta antiga, muito utilizada nos projetos arquitetônicos desde a Roma antiga, passando pela era modernista e chegando aos dias atuais. Porém, com o desenvolvimento de novos materiais e técnicas, nosso simples concreto, apenas cinza, pode gerar infinitas cores e texturas; No Brasil, mesmo com uma
Publicado em: 2006
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8. Situações críticas no projeto de edifícios de concreto armado submetidos a ações de construção / Critical situations in reinforced concrete building design subjected to construction loads
O presente trabalho consiste no estudo das ações construtivas e seus efeitos em edifícios de concreto armado. Para a avaliação desses efeitos é aplicado o método das estruturas primárias em pavimentos de edifícios, verificando-se os estados limites durante a sua construção. São considerados edifícios com diferentes subsistemas horizontais, alter
Publicado em: 2004
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9. Pressão lateral em formas para concreto
In this work the lateral pressures caused by placement of the fresh concrete in the formwork has been investigated. Some factors that have influenced the behaviour of these pressure were analysed. Several research works conceming equations for the lateral pressure calculation, which consider the density product of the concrete by the height as maximum limit
Publicado em: 1998