<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In this paper the local and distortional buckling analyses of axially loaded cold-rolled channel and sigma profiles were performed. The critical buckling load was computed by solving the linear eigenvalue problem for different numerical models using Finite Element Method and simplified formulas implemented in Eurocode and proposed by Hancock and Schafer. The buckling analyses were conducted to prove that the sigma cross-section can be successfully replaced by channel cross-section with additional elastic supports placed in folds of the web. It was demonstrated that the folds in the web of the sigma cross-section (additional elastic supports) reduce the slenderness of the web. So, the critical distortional stress can be calculated based on analytical formulas derived for the channel cross-section taking into account the web height between the folds.</p></abstract>

In this paper the local and distortional buckling analyses of axially loaded cold-rolled channel and sigma profiles were performed. The critical buckling load was computed by solving the linear eigenvalue problem for different numerical models using Finite Element Method and simplified formulas implemented in Eurocode and proposed by Hancock and Schafer. The buckling analyses were conducted to prove that the sigma cross-section can be successfully replaced by channel cross-section with additional elastic supports placed in folds of the web. It was demonstrated that the folds in the web of the sigma cross-section (additional elastic supports) reduce the slenderness of the web. So, the critical distortional stress can be calculated based on analytical formulas derived for the channel cross-section taking into account the web height between the folds.

Local and Distortional Buckling of Axially Loaded Cold Rolled Sigma Profiles

Faculty of Civil and Environmental Engineering, Poznan University of Technology, Piotrowo 5, 60-965 Poznan, Poland

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Local and Distortional Buckling of Axially Loaded Cold Rolled Sigma Profiles"}

In this paper the local and distortional buckling analyses of axially loaded cold-rolled channel and sigma profiles were performed. The critical buckling load...

Local and Distortional Buckling of Axially Loaded Cold Rolled Sigma Profiles

Published Online: Aug 06, 2016

Page range: 218 - 222

Received: Sep 06, 2015

Accepted: Jul 20, 2016

DOI: https://doi.org/10.1515/ama-2016-0033

Keywords
Cold Rolled Sigma Profiles, Local And Distortional Buckling, Eurocode 3, Finite Element Method

© 2016 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Local and Distortional Buckling of Axially Loaded Cold Rolled Sigma Profiles

Published Online: Aug 06, 2016

Page range: 218 - 222

Received: Sep 06, 2015

Accepted: Jul 20, 2016

DOI: https://doi.org/10.1515/ama-2016-0033

KeywordsCold Rolled Sigma Profiles, Local And Distortional Buckling, Eurocode 3, Finite Element Method

© 2016 Bialystok University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Cold Rolled Sigma Profiles, Local And Distortional Buckling, Eurocode 3, Finite Element Method