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Bending capacity of single and double-sided welded I-section girders: Part 1: Experimental investigations

  • The lateral-torsional buckling resistance of welded steel girders is affected by their residual stresses and geo-metric imperfections. Generally, both influences are mainly controlled by the manufacturing process, in partic-ular the welding of the girder. This paper presents experimental investigations on four laterally unbraced welded steel girders with thin-walled I-sections, whose flange-to-web junctions are welded from one or two sides to evaluate the fabrication influence. The investigations include lateral-torsional buckling tests under combined bending and torsion loading caused by three-point bending due to an eccentric vertical single force. The geometric imperfections of the welded test girders are determined by 3D laser scanning. The test results show that the influence of the geometric imperfections and the residual stresses on the lateral-torsional buck-ling resistance is limited for the tested girders.

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Metadaten
Author: Jian Wang, Mathias EulerORCiD, Hartmut PasternakORCiD, Zheng Li, Thomas Krausche, Benjamin LaunertORCiD
DOI:https://doi.org/10.1201/9781003348443-159
ISBN:978-1-00-334845-0
Title of the source (English):Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems : Proceedings of The Eighth International Conference on Structural Engineering, Mechanics and Computation, 5-7 September 2022, Cape Town, South Africa
Publisher:CRC Press
Place of publication:Boca Raton
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2022
Tag:3D laser scanning; Experimental investigations; imperfections; lateral-torsional buckling; single and double-sided welds
First Page:975
Last Page:980
Faculty/Chair:Fakultät 6 Architektur, Bauingenieurwesen und Stadtplanung / FG Stahl- und Holzbau
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