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Fig. 2. Welding-induced residual stresses a) using milling and b) flame-cutting on edges [28]; c) residual stress model of ECCS [23] and BSK 99 [24].
Refs. [23] and [24] are:
[23] European Convention for Constructional SteelworksManual on Stability of Steel Structures: Part 2.2. Mechanical Properties and Residual Stresses (1976)
[24] BSK 99, Swedish Design Rules for Steel Structures (2003)
This and the next 4 images are from:
D. Kollár and B. Kövesdi (Budapest University of Technology and Economics, Department of Structural Engineering, Műegyetem rkp. 3, H-1111, Budapest, Hungary),
“Welding simulation of corrugated web girders - Part 1: Effect of manufacturing on residual stresses and imperfections”, Article 106107, Thin-Walled Structures, Vol. 146, January 2020, https://doi.org/10.1016/j.tws.2019.04.006
ABSTRACT: Steel I-girders with corrugated webs have been widely used in the past decades, especially in bridges. Although, there are several specialities in their structural behaviour which needs further investigation. Buckling resistance of slender structures is sensitive to imperfections due to residual stresses and initial geometric imperfections. Shear buckling resistance of conventional I-girders with flat webs have been extensively analysed previously. However, the sensitivity of corrugated web girders to imperfections need further investigations. The current paper introduces the finite element model of corrugated web girders developed for modelling thermal cutting and welding. The developed numerical model is capable of simulating thermal phenomena during manufacturing, and it is a useful tool to determine residual stresses and initial geometric imperfections depending on welding variables. Manufacturing imperfections are calculated for several girders with different corrugation profiles. The obtained tendencies are evaluated and discussed in the current paper (Part I). In the accompanying paper [1] (Part 2) the effect of manufacturing imperfections are analysed on the shear buckling resistance of corrugated web girders. The whole numerical simulation process from manufacturing simulation to resistance determination is presented, and their advantages in the design are demonstrated.
References listed at the end of the paper:
1 D. Kollár, B. Kövesdi, Welding simulation of corrugated web girders - Part 2: effect of manufacturing on shear buckling resistance, Thin-Walled Struct. (2019)
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