Moment Curvature
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. CORRELATION BETWEEN CERVICAL MORPHOLOGY, PAIN, FUNCTIONALITY, AND ROM IN INDIVIDUALS WITH CERVICALGIA
RESUMO Objetivo: Verificar se existe correlação entre a morfologia da curvatura da coluna cervical, a intensidade da dor, a incapacidade funcional e a amplitude de movimento em indivíduos com cervicalgia. Métodos: Foram avaliados 39 indivíduos, por meio de Raios x no plano sagital direito (método Cobb C1-C7 duas linhas), da escala visual analógica,
Coluna/Columna. Publicado em: 01/06/2019
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2. Seismic Evaluation of Horizontally Curved Bridges Subjected to Near-Field Ground Motions
Abstract Horizontally curved bridges have more complex seismic behavior than straight bridges and have been more vulnerable to earthquakes. The present study aimed to evaluate the seismic response of concrete bridges with straight and arched box girder decks in isolated and non-isolated states. The results indicated that increasing the curvature of the non-i
Lat. Am. j. solids struct.. Publicado em: 14/03/2019
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3. Flexural Behavior of Beams Reinforced with Steel Bars Exceeding the Nominal Yield Strength
Abstract If steel manufactures usually comply with the minimum code specifications, the nominal yield strength of rebar can however be significantly exceeded in many countries, depending on the steel manufacturing processes. Such an increase in yield strength can have negative effects on the flexural behavior of beams designed as tension controlled, and redu
Lat. Am. j. solids struct.. Publicado em: 2016-05
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4. Numerical analysis of highly deformable elastoplastic beams
AbstractThe objective of the present study is to develop a numerical formulation to predict the behavior of highly deformable elastoplastic thin beams. Following the Euler-Bernoulli bending, the axial and shear effects are neglected, and the nonlinear second-order differential equation regarding the angle of rotation is defined based on the specific moment-c
Lat. Am. j. solids struct.. Publicado em: 2015-08
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5. Ductility of reinforced lightweight concrete beams and columns
This paper presents analytical and experimental results on ductility of reinforced lightweight concrete beams and columns in the form of moment curvature relationships, and compares the response with that of normal reinforced concrete members. The experimental part is limited to flexural tests on beams made of lightweight concrete. The latter is obtained wit
Lat. Am. j. solids struct.. Publicado em: 2014-12
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6. Monitoração de modelos físicos reduzidos para investigação do comportamento de estruturas em escala real. / Monitoring reduced physical models to investigate the behavior of real structures.
Esta pesquisa apresenta a monitoração de modelos reduzidos para a investigação do comportamento de estruturas. O estudo do comportamento estrutural consistiu basicamente na medição de grandezas físicas de forma experimental, para o qual os modelos físicos reduzidos foram submetidos a múltiplos ensaios em laboratório. Posteriormente, os dados experi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2011
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7. Avaliação da não linearidade fisica na estabilidade global de edificios de concreto armado / Evaluation of physical no-linearity in the global stability of reinforced concrete buildings
Neste trabalho são apresentadas as expressões matemáticas necessárias para determinar o momento de inércia em função da curvatura para seções retangulares de concreto armado solicitadas a flexo-compressão reta. As expressões são determinadas através da integração analítica da curva tensão-deformação do concreto. Com base nestas expressões
Publicado em: 2006
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8. Desempenho dos modelos da nbr-6118 para anÃlise de vigas contÃnuas em concreto armado
Continuous beams are essential to structural solutions to buildings, bridges and walkways. Collapse in flexure does not necessarily occur when critical section reaches its strength capacity. Due moment redistribution collapse may occur when a sufficient number of plastic hinges transforms the structure into a mechanism. On the other hand, in order to develop
Publicado em: 2005
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9. EXPERIMENTAL STUDY ON DUCTILITY OF REINFORCED CONCRETE BEAMS STRENGTHENED IN FLEXURE WITH CARBON FIBER COMPOSITES / ESTUDO EXPERIMENTAL DA DUCTILIDADE DE VIGAS EM CONCRETO ARMADO REFORÇADAS À FLEXÃO UTILIZANDO COMPÓSITOS COM TECIDO DE FIBRAS DE CARBONO
The objective of this experimental work is to study the ductility of reinforced concrete beams strengthened in flexure using externally bonded carbon fiber fabric composites. This study presents the classic concepts of ductility and proposes a new systematic to obtain the ductility index, which is based on the considerations of elastic and inelastic energy.
Publicado em: 2004
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10. Momentos fletores negativos nos apoios de lajes formadas por vigotas de concreto protendido / Bending moments in the support of slabs made by precast prestressed concrete joist
This work aims the structural analysis in a type of slabs that is increasing its utilization in Brazil. These slabs are made by precast prestressed joists. The main objective of this work is the evaluation of the behavior of this type of slabs by theoretical analysis of the bending moments on the supports of continuous slabs. In the theoretical analysis was
Publicado em: 2002
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11. Bending moments in the support of slabs made by precast joist with lattice reinforcement. / Estudo dos momentos fletores negativos nos apoios de lajes formadas por elementos pré-moldados tipo nervuras com armação treliçada.
This work deal with an usual type of slab in Brazil: slabs made by precast joist with lattice reinforcement. The goal of this work is the structural analysis of bending moments in the supports of slabs made by this kind of precast element. Theoretical and experimental models analyze this type of slab. In the theoretical analysis, the non-linear concrete beha
Publicado em: 2001
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12. DIAGRAMAS DE INTERACCIÓN PARA EL DIMENSIONAMIENTO DE PILARES ESBELTOS Y SECCIONES DE CONCRETO DE ALTA RESISTENCIA / INTERACTION DIAGRAMS FOR THE DESIGN OF HIGH STRENGTH CONCRETE SLENDER COLUMNS AND CROSS-SECTIONS / DIAGRAMAS DE INTERAÇÃO PARA O DIMENSIONAMENTO DE PILARES ESBELTOS E SEÇÕES DE CONCRETO DE ALTA RESISTÊNCIA.
The use of high strength concrete is already a reality and many countries are adapting their design codes to take into account the properties of this material. For the design of slender columns and sections subjected to combined axial force and bending, the most important property is the stress-strain relationship. While for normal concrete the strain at ult
Publicado em: 2000