Bending Behaviour
Mostrando 13-24 de 26 artigos, teses e dissertações.
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13. On the behaviour of single-span steel beams under uniform heating
Structures’ load resistance is reduced when subject to high temperatures in fire. Nevertheless, it is not enough to take into account strength and modulus of elasticity reduction. One must know with great accuracy the behaviour of the structures including the realistic boundary conditions at high temperatures, in order to determine for safe and of low cost
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-03
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14. Análise Paramétrica de Ligações com Placa de Extremidade em Estruturas de Aço Submetidas a Momento Fletor e Força Axial / Parametrical Analysis of Structural Steel Endplate Joints Subjected to Bending Moment and Axial Force.
Traditionally, the steel portal frame design assumes that beam-to-column joints are rigidor pinned. Rigid joints, where no relative rotations occur between the connected members, transfer not only substantial bending moments, but also shear and axial forces. On the other extreme, pinned joints, are characterised by almost free rotation movement between the c
Publicado em: 2006
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15. Tunnels analysis considering time-dependent behaviour in the ground-support interaction / Análise tridimensional de túneis considerando o comportamento dependente do tempo na interação maciço-suporte
Shotcrete has been more and more used worldwide for tunnel support. This kind of material has the characteristics of starting to act structurally since early ages. Nevertheless, the current processes of support design neglect the development of its properties after some time in connection to the 3D effects of the region where the face of the tunnel is locate
Publicado em: 2006
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16. THE STRUCTURAL BEHAVIOUR OF COMPOSITE LAMINATES MANUFACTURED USING RESIN INFUSION UNDER FLEXIBLE TOOLING
This thesis presents a detailed investigation on the structural behaviour of hybrid plain weave composite laminates manufactured using Resin Infusion under Flexible Tooling (RIFT) process under static and dynamic impact loading conditions. Composite laminates were manufactured using a newly developed RIFT manufacturing facility marking the beginning of a new
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 200511
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17. AVALIAÇÃO ESTRUTURAL DE LIGAÇÕES SEMI-RÍGIDAS EM AÇO COM PLACA DE EXTREMIDADE / STRUCTURAL EVALUATION OF END PLATE STEEL SEMI-RIGID CONNECTIONS
The beam-to-column connections play fundamental role in the determination of the real behavior of steel structures. Therefore it is imperative to proper evaluate and consider the real geometric and mechanical properties of these connections, substituting the traditional idealized considerations, rigid and flexible, for the semi-rigid modelling approach. Nowa
Publicado em: 2004
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18. EXPERIMENTAL STUDY ON THE BEHAVIOR OF COMPOSITE COLUMNS SUBJECTED TO COMPRESSION AND BENDING / ESTUDO EXPERIMENTAL DO COMPORTAMENTO DE PILARES MISTOS SUJEITOS A FLEXO-COMPRESSÃO
Composite columns are a structural members subjected to compression and bending, made of concrete and structural steel. One particular type of composite column consists of rectangular steel hollow sections completely filled with concrete and reinforcing bars, which is the type of column considered in this work. One of the advantages of this column is the con
Publicado em: 2003
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19. COMPORTAMENTO DE LIGAÇÕES COM PLACA DE EXTREMIDADE EM ESTRUTURAS DE AÇO SUBMETIDAS A MOMENTO FLETOR E FORÇA AXIAL / BEHAVIOUR OF STRUCTURAL STEEL ENDPLATE JOINTS SUBJECTED TO BENDING MOMENT AND AXIAL FORCE
Tradicionalmente, o projeto de pórticos em estruturas de aço assume que as ligações viga-coluna são rígidas ou flexíveis. As ligações rígidas, onde não ocorre nenhuma rotação entre os membros conectados, transferem não só momento fletor, mas também força cortante e força normal. Por outro lado, as ligações flexíveis são caracterizadas p
Publicado em: 2003
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20. Effect of a Shot Peening Pre Treatment on the Fatigue Behaviour of Hard Chromium on Electroless Nickel Interlayer Coated AISI 4340 Aeronautical Steel
Multiple layer systems of coatings are considered to have larger resistance to crack propagation in comparison to coatings with simple layer. With regard to fatigue, it is possible to improve the resistance of a component with the application of shot peening treatment, whose compressive residual stresses delay or eliminate the initiation and propagation of f
Materials Research. Publicado em: 2002-06
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21. Precast concrete beam-to-column connections: emphasis on the deformability analysis / Ligações viga-pilar de estruturas de concreto pré-moldado: análise com ênfase na deformabilidade ao momento fletor
The present research deals with the study of two types of precast beam-to-column connections with emphasis on the deformability analysis. The first one is extensively used in precast concrete portal frames with sloping beams. The second one is used in multi-storey framed structures. Experimental tests on two models of each type of beam-to-column connections
Publicado em: 2002
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22. Estruturas tipo sanduíche com placas de argamassa projetada / Sandwich-type structures with plates made of projected mortar
Sandwichtype elements, with plates made of projected mortar, have been used in the construction of buildings in some countries, including Brazil, showing expressive thermical, acoustical and mechanical strength characteristics. In general, the application of this kind of element have been limited to buildings, mainly used as cladding panels, with carrying
Publicado em: 2002
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23. Reforço a flexão de vigas de concreto de elevada resistencia por meio da colagem de manta polimerica reforçada com fibras de carbono
The objective of this dissertation is to offer a contribution in the study of the behaviour of high strength reinforced concrete beams with externally bonded carbon fiber reinforced plastic (CFRP) sheets, wich is a technique that has been executed since 1980. Six beams, with concrete strength around 90 :MPa, and with identics geometry and internal reinforcin
Publicado em: 2001
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24. Aplicação do método dos elementos de contorno à análise de pavimentos de edifícios / Application of the boundary element method to slab floor analysis
This work deals with a formulation of the boundary element method applied to slab floor analysis with special emphasis concrete flat slabs exhibiting physical non-linearities. In this formulation normal and shear components of the stress tensor are taken into account to capture more accurately the ultimate strength of the structural element. The boundary ele
Publicado em: 2001