Behaviour, finite element modelling and design of cruciform section steel columns
File(s)
Published version
Author(s)
Behzadi-Sofiani, Behnam
Gardner, Leroy
Wadee, MA
Type
Journal Article
Abstract
A study into the mechanical behaviour and design of steel equal-leg cruciform section members subjected to axial compression is presented. Experimental data from the literature are used to validate shell finite element models developed within the commercial package ABAQUS for their load-deformation and ultimate behaviour. A numerical parametric study then considers cruciform section columns with a wide range of slenderness ratios and various common boundary conditions. The mechanical response and load-carrying capacity are shown to be dependent not only on the column slenderness but also on the torsional to flexural elastic buckling load ratio. Finally, a recently established design approach for steel angle section columns is extended to include cruciform section members, and verified against the available results. It is found through reliability analysis based on the EN 1990 procedure that the new proposal also offers substantially improved accuracy and consistency in strength predictions compared to the existing codified design rules for cruciform section columns; a recommended partial safety factor of 1.0 is determined.
Date Issued
2023-01-01
Date Acceptance
2022-09-06
Citation
Thin Walled Structures, 2023, 182 (Part A), pp.1-13
ISSN
0263-8231
Publisher
Elsevier
Start Page
1
End Page
13
Journal / Book Title
Thin Walled Structures
Volume
182
Issue
Part A
Copyright Statement
© 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/).
(http://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://www.sciencedirect.com/science/article/pii/S0263823122006760?via%3Dihub
Subjects
Civil Engineering
0901 Aerospace Engineering
0905 Civil Engineering
0913 Mechanical Engineering
Publication Status
Published
Article Number
110124
Date Publish Online
2022-10-13