Transverse Reinforcement
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Reliability-based calibration of Brazilian structural design codes used in the design of concrete structures
Resumo Este artigo apresenta a calibração, baseada em confiabilidade, dos coeficientes parciais de segurança das normas brasileiras utilizadas no dimensionamento de estruturas de concreto. O trabalho está fundamentado na teoria de confiabilidade, que permite uma representação explícita das incertezas envolvidas em termos das resistências e ações. N
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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2. Concrete block structural masonry beam shear design: theoretical and experimental analysis and recommendations to the brazilian standards
Resumo Vigas são submetidas à flexão e cisalhamento, sendo esse último esforço o tema desta pesquisa. O objetivo deste trabalho é analisar especificações para dimensionamento ao esforço cortante de vigas de alvenaria estrutural em blocos de concreto, a partir de extensa avaliação da literatura e de ensaios experimentais aqui relatados. A partir de
Rev. IBRACON Estrut. Mater.. Publicado em: 23/09/2019
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3. Shear strength analysis of slabs without transverse reinforcement under concentrated loads according to ABNT NBR 6118:2014
Resumo A solicitação por cargas parcialmente distribuídas em lajes sem armadura transversal, frequente em tabuleiros de pontes, resulta na propagação horizontal da força cortante em direção aos apoios, situação na qual nem toda a largura da laje é mobilizada. Por esta razão, os modelos de resistência à força cortante de vigas e de resistência
Rev. IBRACON Estrut. Mater.. Publicado em: 18/07/2019
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4. Comparative analysis among standards of the area calculation of transversal reinforcement on reinforced concrete beams of high resistance subjected by shear force
Resumo Concretos de alta resistência (CAR) correspondem a uma resistência à compressão característica compreendida entre 55 e 90 MPa. Com a possibilidade crescente da utilização de CAR, faz-se necessária a realização de estudos que abordem os tratamentos normativos usuais acerca do dimensionamento de elementos por ele constituídos, especificamente
Rev. IBRACON Estrut. Mater.. Publicado em: 2019-02
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5. Finite Element Analysis of Reinforced Concrete Beam-Column Connections with Governing Joint Shear Failure Mode
Abstract Reinforced concrete (RC) beam-column connections especially those without transverse reinforcement in joint region can exhibit brittle behavior when intensive damage is concentrated in the joint region during an earthquake event. Brittle behavior in the joint region can compromise the ductile design philosophy and the expected overall performance of
Lat. Am. j. solids struct.. Publicado em: 2017-08
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6. Transverse permeability determination and influence in resin flow through an orthotropic medium in the RTM process
ABSTRACT Resin Transfer Molding (RTM) process is commonly used to produce high quality polymeric composites with simple or complex geometries in small to large sizes. In RTM process a preformed reinforcement is positioned inside the mold cavity. This dry reinforcement is actually a fibrous porous media whereby resin will flow. The mold is then closed and res
Matéria (Rio J.). Publicado em: 20/07/2017
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7. Behavior of Damaged Exterior RC Beam-Column Joints Strengthened by CFRP Composites
Abstract This paper presents an experimental investigation on the behavior of retrofitted beam-column joints subjected to reversed cyclic loading. The experimental program comprises 8 external beam-column joint connection subassemblages tested in 2 phases; one was the damaging phase and second was the repairing phase. The Beam-column joints were designed onl
Lat. Am. j. solids struct.. Publicado em: 2016-05
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8. Seismic performance of ductility classes medium RC beam-column connections with continuous rectangular spiral transverse reinforcements
The seismic performance of RC columns can considerably be improved through the use of continuous spiral reinforcement in terms of ductility and energy dissipation capacity. Since the beam-column connections were subjected to brittle failure after earthquakes, the simultaneous application of this method in both beams and columns could greatly improve the seis
Lat. Am. j. solids struct.. Publicado em: 2015-08
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9. Effect of cavity preparation on the flexural strengths of acrylic resin repairs
OBJECTIVE: To investigate the effect of cavity preparation on the flexural strength of heat-curing denture resin when repaired with an auto-curing resin. MATERIAL AND METHODS: Ninety-six rectangular specimens (64x10x2.5 mm) prepared from heat-curing denture base resin (Meliodent) were randomly divided into four groups before repair. One group was left intact
Journal of Applied Oral Science. Publicado em: 2010-12
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10. 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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11. Estudo da continuidade em ligações laje-viga-pilar em estruturas pré-moldadas de concreto
The present research deals with the study of continuity in slab-beam-column connections in precast concrete structures, wherein an experimental investigation about the contribution of longitudinal reinforced bars, passing on the side of the column in the top of the slab, on the connector flexural stiffness. For this study, a beam-to-column connection was sel
Publicado em: 2007
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12. 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