Cold Formed Steel Structures
Mostrando 1-12 de 19 artigos, teses e dissertações.
-
1. Finite strip method computer application for buckling analysis of thin-walled structures with arbitrary cross-sections
Abstract The Direct Strength Method (DSM) is a well-known formulation presented in the Brazilian standard ABNT NBR 14762:2010, that estimates the strength capacity of cold-formed steel (CFS) members. However, this formulation requires the elastic critical buckling loads as point of departure, regarding local (L), distortional (D) and global (G) modes, which
REM, Int. Eng. J.. Publicado em: 2021-09
-
2. Composite floor system with CFS trussed beams, concrete slab and innovative shear connectors
Abstract Steel and concrete floor systems are widely applied for buildings and provide excellent structural response, optimized material consumption, reduced beam height, and improved bending strength and stiffness capacity. In recent years, many experimental investigations concerned with new alternatives addressed to efficient interaction between steel and
REM, Int. Eng. J.. Publicado em: 2020-03
-
3. Microstructural analysis in the Fe-30.5Mn-8.0Al-1.2C and Fe-30.5Mn-2.1Al-1.2C steels upon cold rolling
Abstract Electron backscatter diffraction (EBSD) and electron channeling contrast imaging (ECCI) were used to examine microstructural changes of the austenitic low-density Fe-30.5Mn-8.0Al-1.2C (8Al) and Fe-30.5Mn-2.1Al-1.2C (2Al) (wt.%) steels during cold rolling. As the strain increased, deformation mechanisms, such as stacking faults, slip, mechanical twin
Rem: Rev. Esc. Minas. Publicado em: 2016-06
-
4. Numerical and theoretical studies on cold-formed steel unlipped channels subjected to axial compression
This paper presents both the analytical and theoretical investigations on ultimate load carrying capacity and behaviour of CFS unlipped channels with their ends fixed and subjected to axial compression. The numerical studies have been carried out in the elastic as well as in the plastic ranges of loading. The slenderness ratio of the channels chosen is 40, 8
Lat. Am. j. solids struct.. Publicado em: 2015-01
-
5. Theoretical and experimental analysis of cold-formed steel double angle members under compression / Análise teórica e experimental de barras em dupla cantoneira de aço formada a frio submetidas à compressão
Barras compostas em dupla cantoneira são constituídas por duas seções idênticas dispostas paralelamente, afastadas entre si e ligadas uma a outra apenas em alguns pontos ao longo do comprimento, por meio de chapas separadoras. O sistema aqui apresentado é bastante utilizado, principalmente em estruturas treliçadas leves, no entanto, não existem estud
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
-
6. Comportamento estrutural e dimensionamento de cantoneiras de aço formadas a frio submetidas à compressão / Structural behavior and design of cold-formed steel angle columns
Envolto ao já conhecido comportamento de cantoneiras esbeltas de abas iguais, questões aparentemente contraditórias tem sido reportadas em estudos experimentais de diversos autores, entre elas a ocorrência de modos de instabilidade em desacordo com aqueles obtidos via análise de estabilidade elástica, e forças axiais resistentes muito diferentes dos r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2012
-
7. Análise de confiabilidade em ligações parafusadas em chapas finas e perfis de aço formados a frio / Reliability analysis in bolted connections in thin sheets and cold-formed steel members
Este trabalho apresenta uma investigação de modelos analíticos de previsão da força de tração resistente para ligações parafusadas em chapas finas e perfis de aço formados a frio, de acordo com quatro especificações de projeto (ABNT NBR 14762:2010, ANSI AISI S100:2007-S, AS/NZS 4600:2005 e EUROCODE 3 Parte1.3:2010). O estudo envolveu 404 resultad
Publicado em: 2011
-
8. Processing of a duplex stainless steel by equal channel angular extrusion
A UNS S32205 duplex stainless steel was processed by ECAE in three different velocities, at room temperature, and heat treated in different temperatures and times to evaluate recrystallization. Attrition forces promoted great deformation heterogeneity in the samples sections, with hardness increase, and morphology changes in the grains and changing orientati
Matéria (Rio de Janeiro). Publicado em: 2010
-
9. Vigas mistas com laje de concreto e perfis laminados tipo I: análise comparativa do comportamento estrutural entre conectores / Composite beams with reinforced concrete slab and rolled I beam: comparative analysis of the structural behavior of connectors
Among the many structural and building systems, it could be highlighted a system that is a mix of steel-concrete that allows the application of their structural and building advantages as whole. When dealing with metal structures, it was noticed some changes regarding the standards of the involved material due to its lack of availability; such measures do no
Publicado em: 2010
-
10. 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
-
11. Comparative study of steel purlins in conventional beams, in planar trusses and multi-planar trusses / Estudo comparativo entre terças de aço, convencionais em vigas, em treliças planas e em treliças multiplanares
Steel roof systems are widely used in buildings that require large free internal spaces and small execution times, such as commercial and industrial warehouses and storage and distribution centers. The purlins have a considerable contribution in the roof system total weight composition. In this work was developed a study on the different types of purlins for
Publicado em: 2009
-
12. Processamento de aço inoxidável dúplex por extrusão em canal angular
A duplex stainless steel with austeniticferritic structure, type S32205/S31803 was submitted to equal channel angular pressing, whose is based on very severe plastic deformation, at relatively low temperature, with no change in the dimensions along transversal section of the material. The processed material was heat treated at 1000 and 1200C during 7.5, 15,
Publicado em: 2009