Structural Rigidity
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. Numerical analysis of torsional tangent rigidity of reinforced concrete waffle slab
Resumo Este trabalho de investigação científica aborda a análise da rigidez tangente à torção de lajes nervuradas de concreto armado por meio de comparações da análise numérica com resultados de ensaios experimentais, cujo cálculo foi feito no programa ATENA. Tal programa foi desenvolvido especialmente para cálculo de estruturas de concreto arma
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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2. Global stability of buildings’ structural systems considering beam-wall connections
Resumo Diversos fatores influenciam a estabilidade das estruturas de concreto, como a altura das edificações, a rigidez dos elementos estruturais componentes, o sistema de contraventamento, a rigidez das ligações viga-pilar entre outros. A estabilidade global das estruturas é avaliada segundo a NBR 6118/2014 pelos parâmetros α e γz. Este trabalho obj
Rev. IBRACON Estrut. Mater.. Publicado em: 23/09/2019
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3. Gamma Ray and FTIR Studies in Zinc Doped Lead Borate Glasses for Radiation Shielding Application
Gamma ray shielding properties of borate glass samples containing oxides of lead and zinc are prepared by melt and quench technique and evaluated theoretically using XCOM computer software for gamma ray shielding properties. However, gamma ray shielding properties are discussed in terms of various calculated parameters such as half value layer, mean free pat
Mat. Res.. Publicado em: 14/11/2018
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4. Espuma ultraliviana de Mg a partir de viruta reciclada
ABSTRACT Hundreds of people worldwide die or are severely maimed in collisions during traffic accidents, due to the energy transmitted to the passengers on impact. A dissipation of said energy is necessary to minimize it's effects, which can be achieved through absorbers. In recent years, metallic foams have started to be considered as energy absorbers. Meta
Matéria (Rio J.). Publicado em: 19/07/2018
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5. Influence of microcrystalline cellulose in thermoplastic starch/polyester blown films
Abstract This work investigated the influence of microcrystalline cellulose (MCC) in thermoplastic starch/poly (butylene adipate-co-terephthalate) films produced by blown extrusion, using different MCC contents (4, 7 and 10 g.100 g-1). The films were characterised for their mechanical, structural and barrier properties. Increasing fibres concentration reduce
Polímeros. Publicado em: 29/06/2017
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6. Numerical Study on Steel Shear Walls with Sinusoidal Corrugated Plates
Abstract Over the past decades a growing demand and interest has stimulated many researchers to investigate different aspects of steel plate shear walls (SPSWs). The structural performance of steel shear walls with sinusoidal corrugated plate infills is investigated in this study. Finite element (FE) analysis was adopted using ANSYS software, wherein flat an
Lat. Am. j. solids struct.. Publicado em: 2016-12
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7. Vibration-Based Method for Damage Detection at Welded Beams and Rods
Abstract In this work, a vibration-based method for damage detection at welded beams and rods is presented. The model of the structural element includes the effect of the added inertia due to the welding process. Two methods of solution, analytically and by means of the Finite Element Method (FEM), are presented. From the results obtained it can be asseverat
Lat. Am. j. solids struct.. Publicado em: 2016-12
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8. Rheological Parameters as Affected by Water Tension in Subtropical Soils
ABSTRACT Rheological parameters have been used to study the interaction between particles and the structural strength of soils subjected to mechanical stresses, in which soil composition and water content most strongly affect soil resistance to deformation. Our objective was to evaluate the effect of water tension on rheological parameters of soils with diff
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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9. Structural and thermal properties of carboxylic acid functionalized polythiophenes
Polythiophenes functionalized with polar groups at the end of side-chain have emerged as an alternative method to obtain good compatibility between this class of conjugated polymers and electron acceptor compounds. The aim is to prevent phase segregation and to improve the efficiency of the polythiophene technological devices. However, homopolymers synthesiz
Polímeros. Publicado em: 29/04/2014
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10. Ensaios sobre a meta de inflação ótima para o Brasil / Optimal inflation target for the Brazilian economy
Inflation targeting regimes have been adopted by a large number of countries in recent years. Obviously, the definition of the actual inflation target to be pursued is an essential part of this regime. This work aims to make a contribution to the debate about the optimal target for Brazil. The three essays follow different paths in an attempt to estimate the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/03/2011
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11. Estudo do desempenho de reforços poliméricos em estruturas veiculares submetidas a impacto. / Study of polimeric reinforcements in vehicular structures subjected to impacts.
The objective of this work is to show the application of structural reinforcements using the polymeric material PA66 through finite element simulations in the field of vehicle safety. The preformed structural reinforcements have shown good performance in crash tests, where the great advantage is their reduced weight. These reinforcements are designed with th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2010
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12. Estudo da interação de paredes de alvenaria estrutural com a estrutura de fundação
This dissertation presents a study of factors that influence the soil-structure interaction mechanism in buildings and their implications on the behavior of them. Firstly, an extensive bibliographical review was made, and this study broached the main concepts of the SSI research field, such as constitutive models of soil, discrete models to represent soil, s
Publicado em: 2010