Composite Members
Mostrando 1-12 de 45 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. Experimental analysis of built-up cold-formed steel lipped channel stub column
Abstract This article reports the results of experimental tests conducted on built-up cold-formed steel (CFS) stub columns, composed of double lipped channel members connected with self-drilling screws, which will be applied as the chord members of laced columns. These experiments aim to quantify the effect of four distinct web fastener layouts on the compos
REM, Int. Eng. J.. Publicado em: 16/09/2019
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3. Two-Dimensional Numerical Model of the Fracture Process in Steel Fibre Reinforced Concrete with the Continuum Strong Discontinuity Approach and Functional Data Analysis
Abstract This paper presents the formulation of a two-dimensional numeri-cal model able to describe the fracture process in structural mem-bers of steel fibre reinforced concrete (SFRC) from the volume ratio of the fibres and the mechanical properties of the compo-nents: a concrete matrix and a set of steel fibres with a random orientation. The relationship
Lat. Am. j. solids struct.. Publicado em: 08/04/2019
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4. Inelastic analysis of semi-rigid composite structures under fire conditions
This paper presents the application of a proposed numerical approach, denoted as SAAFE Program (System for Advanced Analysis for Fire Engineering), developed to provide an inelastic analysis of steel and composite (steel-concrete) 2D semi-rigid framed-structures under fire conditions. The proposed structural model allows an accurate description of the struct
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-12
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5. Glulam-concrete composites: experimental investigation into the connection system
Timber-concrete composite structures work appropriately when a suitable connection system is included because the degree of interaction between the materials stiffs the structural system. Thereby, it is extremely important to improve the knowledge about their connection system. The purpose of this paper is to show the results obtained by experimental investi
Materials Research. Publicado em: 26/01/2011
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6. Experimental evaluation wood-to-concrete and wood composite members joints using steel-bar and concrete connectors / Avaliação experimental de ligações de peças mistas madeira- concreto e entre peças de madeira com conectores de barra de aço e de concreto
Apresenta-se neste trabalho uma avaliação experimental de ligações de peças mistas madeira-concreto e de peças compostas de madeira, com emprego de conectores de barras de aço e de conectores de concreto. Nas ligações de peças mistas, foram ensaiados corpos-de-prova simétricos com três peças, com peças laterais de madeira e peça central de con
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2010
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7. A first attempt towards reliability-based calibration of Brazilian structural design codes
This paper addresses the reliability-based calibration of partial safety factors for Brazilian design codes NBR8681:2003 (Actions and Safety of Structures) and NBR8800:2008 (Design of Steel and Steel-Concrete Composite Structures). To the author's knowledge, these codes have never been subject to reliability-based calibration of partial and load combination
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-06
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8. Historical and epidemiological reflections about the epidemiologic foundations of contemporary Clinical Medicine / Reflexão histórico-epistemológica sobre os fundamentos epidemiológicos da Clínica Médica contemporânea
Since 1960 Clinical Medicine suffered a kind of inflection in its internal mechanisms of producing theoretical knowledge, as well as in the way that this knowledge is applied in practical life. The most important difference in relation to the past was that problems of clinical nature like, differential diagnosis, therapeutical decisions, and prognosis estima
Publicado em: 2010
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9. Composite steel and concrete beam constituted by filled cold-formed steel section / Viga mista de aço e concreto constituída por perfil formado a frio preenchido
The composite steel and concrete beams have been largely applied in buildings and bridges constructions, having also a large amount of theoretical and experimental investigations about the use of hot-rolled and welded shapes and shear connectors that are compatible with these members, as for an example, the stud bolt and channel connectors. In the cold-forme
Publicado em: 2009
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10. Efeito do confinamento em pilares mistos curtos de aço e concreto / Effect of confinament in short composite members of steel and concrete
Not informed
Publicado em: 2008
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11. 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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12. Compósitos de hidroxiapatita e polihidroxibutirato em defeitos ósseos experimentais na ulna de coelhos / Hydroxyapatite-polyhydroxybutyrate composites in experimentally made bone deffects in rabbits ulna
Biomaterials used today to treat bones defects and fractures still bear some deficiencies to be corrected. This study is a preliminary analysis of composites made of hydroxyapatite (HAP-91) and polyhydroxybutyrate (PHB) essentials characteristics to be used in orthopedics. The composites were studied in osseous defects concerning their biocompatibility, osse
Publicado em: 2007