Composite Steel Concrete Columns
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Optimum design of steel columns filled with concrete via genetic algorithm: environmental impact and cost analysis
Abstract The use of concrete-filled tubular columns as part of structural systems has steadily increased throughout the years. The growing demand for structural elements of this nature is a direct result of the possibility to use various cross-section shapes that have increased strength, along with resistance to fire and other corrosive agents. The main obje
REM - International Engineering Journal. Publicado em: 2022
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2. Damage evaluation and failure mechanism analysis of steel tube confined reinforced-concrete columns by acoustic emission technology
Abstract As a new kind of composite structures and its advantages, the using of steel tube confined reinforced concrete (STCRC) columns have received increasing attention in civil engineering. Acoustic emission (AE) technique is applied to monitor the damage process of STCRC columns during an uniaxial compression test. The aim of this study is to investigate
Lat. Am. j. solids struct.. Publicado em: 29/11/2018
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3. Temperature field of concrete-filled steel tubular columns in fire
Abstract The composite structures formed by the association of steel profiles with concrete have shown to be an advantageous alternative, improving the behavior of the steel structures concerning their load capacity, stiffness, and durability, under fire conditions. The concrete-filled tubular columns have become an attractive alternative for the civil const
REM, Int. Eng. J.. Publicado em: 2017-06
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4. A general method for designing non-symmetrical composite steel and concrete columns
Abstract The study of non-symmetrical composite columns is complex and European and North American standards only approach this issue superficially. In this text, a new proposal is presented for non-symmetrical composite column design subject to biaxial bending and axial compression, based on the compatibility of the deformation method, which considers the n
REM, Int. Eng. J.. Publicado em: 2016-09
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5. Numerical study of concrete-filled steel composite (CFSC) stub columns with steel stiffeners
Numerical study of concrete-filled steel composite (CFSC) stub columns with steel stiffeners is presented in this paper. The behaviour of the columns is examined by the use of the finite element software LUSAS. Results from nonlinear finite element analyses are compared with those from corresponding experimental tests which uncover the reasonable accuracy of
Lat. Am. j. solids struct.. Publicado em: 2014-08
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6. Effect of relative humidity on creep-shrinkage behaviour of composite tall buildings
Relative humidity of environment affects creep and shrinkage behaviour of a concrete member of composite tall buildings. These buildings are more prone to redistribution of forces as adjacent steel columns and RCC shear walls have quite different characteristics. In this paper, study is carried out to evaluate the effect of relative humidity of environment f
Lat. Am. j. solids struct.. Publicado em: 2013-05
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7. Behaviour of stiffened concrete-filled steel composite (CFSC) stub columns
This paper investigates the behaviour of axially loaded stiffened concrete-filled steel composite (CFSC) stub columns using the finite element software LUSAS. Modelling accuracy is established by comparing results of the nonlinear analysis and the experimental test. The CFSC stub columns are extensively developed using different special arrangements, number,
Lat. Am. j. solids struct.. Publicado em: 2013-03
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8. Desenvolvimento de estratégias híbridas de reforço de pilares de concreto armado por encamisamento com compósitos de alto desempenho / Hybrid strategies development for strenghtening concrete columns jacketed with high performance composite
Tradicionalmente no reforço de pilares de concreto armado são empregados materiais já consagrados, como as chapas de aço, o próprio concreto armado, e, mais recentemente, o polímero reforçado com fibras (PRF). Porém existem ainda alguns problemas associados a estes materiais ou, mais especificamente, às técnicas utilizadas para promover o reforço,
Publicado em: 2010
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9. Nonlinear numerical analysis of circular concrete filled steel short columns under fire condition / Modelos numéricos de pilares mistos curtos de seções circulares de aço preenchidos com concreto em situação de incêndio
Os pilares mistos de aço preenchidos com concreto, quando submetidos a elevadas temperaturas, apresentam comportamento estrutural bastante satisfatório e reduzem no concreto o fenômeno denominado spalling, devido ao confinamento imposto pelo tubo de aço, mais pronunciado em seções tubulares circulares. Destaca-se ainda a reduzida taxa de aquecimento de
Publicado em: 2009
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10. Eurocode structural fire design and its application for composite circular hollow section columns
The tabular structural fire design method for centrally loaded composite columns consisting of concrete filled steel circular hollow sections proposed in EN 1994-1-2:2005 (Eurocode 4: Design of Composite Steel and Concrete Structures - Structural Fire Design) is described here. A design procedure is then discussed, based on the determination of the temperatu
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-03
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11. Experimental study about the fire effect in short composite column of steel and concrete / Estudo experimental do efeito do fogo em pilares mistos de aço e concreto
The use of circular hollow steel filled with concrete as columns are of great importance in the structural area, because it allows steel tube and concrete working together, providing a greater capacity resistant and a longer fire exposure, in relation to the same materials analyzed separately. This work will provide technical information for understanding th
Publicado em: 2008
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12. Analysis of the distribution of the shear stress in the interface steel-concrete of partially encased composite columns / Analise da distribuição das tensões de cisalhamento na interface aço-concreto de pilares mistos parcialmente revestidos
The rational use of the steel and concrete in buildings, in the composition of structural sections is a economically form and structural viable, mainly in multi storey buildings. Among the vast field called "steel-concrete composite structures", we can characterize the composite columns encased like a profile of structural steel of the type "I" or "H" covere
Publicado em: 2008