Local and distortional buckling of axially loaded cold rolled sigma profiles

• Autorzy: Ciesielczyk K. , Rzeszut K.

Identyfikatory

DOI

10.1515/ama-2016-0033

• Języki publikacji: EN

Abstrakty

EN

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 crosssection taking into account the web height between the folds.

Słowa kluczowe

EN

cold rolled sigma profiles; local and distortional buckling; Eurocode 3; finite element method; FEM

PL

walcowanie na zimno; Eurokody; metoda elementów skończonych; MES; profil walcowany

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2016
• Tom: Vol. 10, no. 3
• Strony: 218--222
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Ciesielczyk K.

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

autor

Rzeszut K.

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

Bibliografia

• 1. Abaqus Documentation – version 6.13, http://www.abaqus.com
• 2. Davies J.M., Jiang C. (1996), Design of thin walled columns for distortional buckling, Proceedings of the Second International Conference on Coupled Instability in Metal Structures CIMS’96, Liege, Belgium.
• 3. EN 1993-1-3, Eurocode 3 (2006), Design of steel structures – Part 1-3: General rules – Supplementary rules for cold-formed members and sheeting.
• 4. He Z., Zhou X., Liu Z., Chen M. (2014), Post-buckling behaviour and DSM design of web-stiffened lipped channel columns with distortional and local mode interaction, Thin-Walled Structures, 84, 189–203.
• 5. Lau, S.C.W., Hancock, G.J. (1990), Inelastic buckling of channel columns in the distortional mode, Thin – Walled Structures, 10, 59-84.
• 6. Long-yuan Li (2009), Analyses of distortional buckling of coldformed sigma purlins using EN 1993-1-3, Journal of Constructional Steel Research, 65, 2099-2102.
• 7. Long-yuan Li, Jian-kang Ch. (2008), An analytical model for analysing distortional buckling of cold-formed steel sections, Thin – Walled Structures, 46, 1430-1436.
• 8. Pala M. (2006) A new formulation for distortional buckling stress in cold-formed steel members, Journal of Constructional Steel Research, 62, 716–722.
• 9. Pala M., Caglarb N. (2007), A parametric study for distortional buckling stress on cold-formed steel using a neural network, Journal of Constructional Steel Research, 63, 686–691.
• 10. Schafer B.W. (2000), Distortional buckling of cold-formed steel columns, Final Report of AISI.
• 11. Schafer B.W. (2008), Review: The Direct Strength Method of coldformed steel member design, Journal of Constructional Steel Research, 64 766–778.
• 12. Szymczak C., Werochowski W. (2005), Distortional instability of axially loaded cold-formed elements with stiffened flanges (in Polish), Inżynieria i Budownictwo, R. 61, 2, 85-88.
• 13. Wang L., Young B. (2014), Design of cold-formed steel channels with stiffened webs subjected to bending, Thin-Walled Structures, 85, 81–92.
• 14. Yua C., Schafer B.W. (2007),Simulation of cold-formed steel beams in local and distortional buckling with applications to the direct strength method, Journal of Constructional Steel Research, 63, 581–590.
• 15. Zhou X., Liu Z., , He Z. (2015), General distortional buckling formulae for both fixed-ended and pinned-ended C-section columns, Thin-Walled Structures, 94, 603–611.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.