Cold Formed Steel
Mostrando 13-24 de 63 artigos, teses e dissertações.
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13. Effect of Web Holes and Bearing Stiffeners on Flexural-Shear Interaction Strength of Steel Cold-Formed C-Channel Sections
Abstract This paper presents an investigation on interaction equation between the required flexural strength, M, and the required shear strength, V, of cold-formed C-channels with web holes and bearing stiffeners. The primarily shear condition test was employed to study total 8 back to back lipped C channel sections of 95 and 100 mm depth when bearing stiffe
Lat. Am. j. solids struct.. Publicado em: 2016-06
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14. 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
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15. Fastener Demands for Sheathing-Braced Cold-Formed Steel Stud Gravity Walls
Abstract We explore, in this paper, the demands and behavior on fasteners supplying sheathing-based bracing of gravity loaded cold-formed studs and wall assemblies. The studies are carried out by shell finite element (FE) models, which are compared to analytical solutions and previously completed laboratory tests conducted by the authors. The connection betw
Lat. Am. j. solids struct.. Publicado em: 2016-06
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16. Bolted Shear Connectors Performance in Self-Compacting Concrete Integrated with Cold-Formed Steel Section
Abstract In conventional composite construction involving hot-rolled steel section, the composite action is usually achieved by using conventional headed shear studs connectors. However, use of headed studs is not practical for cold-formed steel (CFS) section due to its very thin form that is difficult to weld. A suitable bolt and nut type shear connector wa
Lat. Am. j. solids struct.. Publicado em: 2016-04
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17. Corrosion Behavior and Microstructure of Borided Tool Steel
In the present study, the corrosion behaviors of borides formed on cold work tool steel have been investigated in a 4% M HCl acid solution. Boriding was performed in a solid medium consisting of Ekabor-II powders at 850 and 950°C for 6 h. The boride layer was characterized by SEM, EDS, XRD and the hardness tester. XRD analysis of boride layers on the surfac
Matéria (Rio J.). Publicado em: 2015-06
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18. 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
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19. Local/Distortional/Global buckling mode interaction on thin walled lipped channel columns
The buckling behaviour of pin ended cold-formed steel lipped channel columns affected by local / distortional / global buckling mode interaction under axial loading is simulated by using finite element software ABAQUS, and the results are compared with the test results available in the literature. The comparisons show that the proper analysis model can simul
Lat. Am. j. solids struct.. Publicado em: 2014-12
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20. Experimental investigation of the mechanical properties of ZAR-345 cold-formed steel at elevated temperatures
Considering the technical-scientific advances of recent years in the steel construction industry, there is a strong trend for the increasing use of cold-formed steel members in civil construction, due to several advantages such as cost and versatility of fabrication and erection. However, there is need for further study concerning the behavior of this type o
Mat. Res.. Publicado em: 01/08/2014
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21. Study on the capacity of cold-formes steel built-up battened colums under axial compression
This paper presents the theoretical and numerical investigation results of the pin ended cold-formed steel built-up battened columns under axial compression. The finite element model was developed using the finite element software ABAQUS. The comparison of finite element analysis results match with the test results available in the literature shows that the
Lat. Am. j. solids struct.. Publicado em: 2014
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22. Análise do comportamento a temperaturas elevadas de elementos de aço formados a frio comprimidos considerando restrição ao alongamento térmico / Analisys on the behaviour of cold formed steel columns under fire conditions with restarined thermal elongation
No presente trabalho se desenvolve como proposta principal, uma investigação experimental sobre o comportamento de elementos de aço formados a frio comprimidos em temperaturas elevadas considerando a influência da restrição ao alongamento térmico. Nessa investigação foram avaliadas as distribuições de temperaturas no contorno da seção transversa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/10/2012
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23. 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
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24. 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