Abstract
Abstract Structural steel elements that are obtained by cold forming become more and more popular in steel construction. Indeed they are lighter in weight and thus provide appreciable savings compared with the usual hot rolled sections. Because they are obtained by cold forming, two kinds of residual stresses occur: membranar and flexural stresses. The flexural residual stresses are usually larger than the membranar ones. However the ECCS (European Convention for Constructional Steelwork) column buckling curves were established on the basis of longitudinal membranar residual stresses only, in addition to geometrical imperfections. Using a non-linear computer program, the authors investigate the influence of longitudinal flexural residual stresses on the carrying capacity of cold formed angles. This kind of section is now widely used for erecting large transmission towers. Strain hardening due to cold forming is taken into account in the present study. From the numerical results obtained, conclusions are drawn on the suitability of European column buckling curves for cold formed angles.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
