Buckling of stainless steel welded I-section columns
Buckling of stainless steel welded I-section columns
This paper studies the buckling behaviour and design of welded I-section stainless steel columns. Experimental and numerical structural performance data together with the design methods for stainless steel welded I-section columns available in the literature have been collated and reviewed. A numerical modelling programme including validation and parametric studies has been carried out to supplement the literature experimental and numerical data for the assessment of the existing codified and literature proposed flexural buckling design formulations for stainless steel welded I-section columns. Columns of austenitic, duplex and ferritic stainless steel grades undergoing major axis and minor axis flexural buckling have been investigated. From comparisons with the EN 1993–1-4 (EC3) flexural buckling capacity predictions, it was found that (1) for the austenitic welded I-section columns, the EC3 buckling curve (α = 0.76 and λ¯
0 = 0.2) is suitable for both axes, (2) for the duplex and ferritic grades, the EC3 buckling curve (α = 0.76 and λ¯
0 = 0.2) is conservative, and a higher buckling curve with (i) α = 0.49 and λ¯
0 = 0.2 for both axes or (ii) α = 0.49 and λ¯
0 = 0.2 for minor axis and α = 0.34 and λ¯
0 = 0.2 for major axis may be adopted. In addition, comparisons with the recently proposed Continuous Strength Method showed marginally improved strength predictions but with slightly higher scatter.
Buckling, Continuous strength method, Eurocode, I-section, reliability assessment, stainless steel
Tuezney, Stijn
e86e224f-435f-4881-853c-2b49ed7ecd66
Lauwens, Kathleen
304ebaf8-f95d-4478-b2a8-b89dc89d58f4
Afshan, Sheida
68dcdcac-c2aa-4c09-951c-da4992e72086
Rossi, Barbara
f239b732-84f6-4b9e-ba60-1877eb304efa
1 June 2021
Tuezney, Stijn
e86e224f-435f-4881-853c-2b49ed7ecd66
Lauwens, Kathleen
304ebaf8-f95d-4478-b2a8-b89dc89d58f4
Afshan, Sheida
68dcdcac-c2aa-4c09-951c-da4992e72086
Rossi, Barbara
f239b732-84f6-4b9e-ba60-1877eb304efa
Tuezney, Stijn, Lauwens, Kathleen, Afshan, Sheida and Rossi, Barbara
(2021)
Buckling of stainless steel welded I-section columns.
Engineering Structures, 236, [111815].
(doi:10.1016/j.engstruct.2020.111815).
Abstract
This paper studies the buckling behaviour and design of welded I-section stainless steel columns. Experimental and numerical structural performance data together with the design methods for stainless steel welded I-section columns available in the literature have been collated and reviewed. A numerical modelling programme including validation and parametric studies has been carried out to supplement the literature experimental and numerical data for the assessment of the existing codified and literature proposed flexural buckling design formulations for stainless steel welded I-section columns. Columns of austenitic, duplex and ferritic stainless steel grades undergoing major axis and minor axis flexural buckling have been investigated. From comparisons with the EN 1993–1-4 (EC3) flexural buckling capacity predictions, it was found that (1) for the austenitic welded I-section columns, the EC3 buckling curve (α = 0.76 and λ¯
0 = 0.2) is suitable for both axes, (2) for the duplex and ferritic grades, the EC3 buckling curve (α = 0.76 and λ¯
0 = 0.2) is conservative, and a higher buckling curve with (i) α = 0.49 and λ¯
0 = 0.2 for both axes or (ii) α = 0.49 and λ¯
0 = 0.2 for minor axis and α = 0.34 and λ¯
0 = 0.2 for major axis may be adopted. In addition, comparisons with the recently proposed Continuous Strength Method showed marginally improved strength predictions but with slightly higher scatter.
Text
Buckling of stainless steel welded I-profile columns_author version
- Accepted Manuscript
More information
Accepted/In Press date: 22 December 2020
e-pub ahead of print date: 25 March 2021
Published date: 1 June 2021
Keywords:
Buckling, Continuous strength method, Eurocode, I-section, reliability assessment, stainless steel
Identifiers
Local EPrints ID: 448414
URI: http://eprints.soton.ac.uk/id/eprint/448414
ISSN: 0141-0296
PURE UUID: 9df3becb-4b5a-437b-ae35-fb687ecffe5e
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Date deposited: 22 Apr 2021 16:30
Last modified: 17 Mar 2024 03:56
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Contributors
Author:
Stijn Tuezney
Author:
Kathleen Lauwens
Author:
Barbara Rossi
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