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Minimum Value Approach for Modelling of the Buckling Resistance of Welded I-Section High Strength Steel Columns

Authors
  • Gajewski, M. D.1
  • Giżejowski, M. A.1
  • Szczerba, R. B.1
  • 1 Faculty of Civil Engineering, 00-637 , (Poland)
Type
Published Article
Journal
Archives of Civil Engineering
Publisher
Sciendo
Publication Date
Dec 01, 2019
Volume
65
Issue
4
Pages
113–126
Identifiers
DOI: 10.2478/ace-2019-0050
Source
De Gruyter
Keywords
License
Green

Abstract

The paper deals with determination of flexural resistance buckling curves for welded I-section steel members made of high strength steel (S 690). In the paper the previously proposed BF analytical model is used for approximation of FEM results obtained using moderately large deformation shell theory and ABAQUS/Standard software. Final formulation of flexural resistance buckling curves is possible through the use of the Merchant-Rankine-Murzewski approach adopted extensively in the authors’ previous papers. For nonlinear optimization, which is needed for analytical model parameters determination, the Wolfram Mathematica package is used. Obtained results for S 690 steel are presented against the results for S 355 steel.

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