SciELO - Scientific Electronic Library Online

 
vol.59 issue2A configuração geométrica inicial na análise avançada de portais planos de açoInfluência do lantânio nas propriedades elétricas do titanato de bário obtido por síntese hidrotérmica author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Rem: Revista Escola de Minas

Print version ISSN 0370-4467On-line version ISSN 1807-0353

Abstract

SOUZA, Djaniro Álvaro de; FREITAS, Marcílio Sousa da Rocha  and  FREITAS, Arlene Maria Sarmanho. Estabilidade de colunas com seções enrijecidas em perfis de aço formados a frio. Rem: Rev. Esc. Minas [online]. 2006, vol.59, n.2, pp.199-205. ISSN 0370-4467.  http://dx.doi.org/10.1590/S0370-44672006000200009.

Cold-formed steel sections are subject to instability phenomena, either local or global, which can influence the load capacity of compressed elements. The use of longitudinal stiffeners can provide increasing load capacity and element efficiency. This paper presents a numerical investigation of cold formed steel sections with web intermediate stiffeners, subjected to axial compression. The sections considered in this study are the channel ones commonly used as columns in residential Steel Framing Systems. The study is based on finite element method analysis, and the critical loads and respective elastic buckling modes are obtained through linear analysis. Non-linear inelastic analyses are conducted to obtain column ultimate-load capacity and to study its post-buckling behavior. Different column lengths were adopted throughout the analyses, to evaluate their behavior under the different types of local instability.

Keywords : Cold-formed Steel; intermediate stiffeners; columns; distortional buckling.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License