In-plane structural response and design of duplex and ferritic stainless steel welded I-section beam-columns
Author(s)
Gardner, Leroy
Kucuckler, Merih
Type
Journal Article
Abstract
In this paper, the in-plane behaviour and design of duplex and ferritic stainless steel
welded I-section beam-columns fabricated through the welding of individual hot-rolled stainless steel plates are explored. Finite element models able to replicate the structural response
of stainless steel I-section members are created and validated against experimental results
from the literature. Using the validated finite element models, extensive numerical parametric studies are performed, the results of which are utilised to investigate the accuracy
and reliability of existing design provisions for duplex and ferritic stainless steel I-section
beam-columns. Scope for improvement is revealed, prompting the development of new beamcolumn design rules that are compatible with those provided for carbon steel members in
EN 1993-1-1. The new proposals are shown to offer improved accuracy and consistency over
existing design provisions for duplex and ferritic stainless steel I-section members under combined axial compression and bending, and are recommended for inclusion in the upcoming
revision to EN 1993-1-4. The reliability of the proposed design rules, with a partial safety
factor γM1 = 1.1, is demonstrated.
welded I-section beam-columns fabricated through the welding of individual hot-rolled stainless steel plates are explored. Finite element models able to replicate the structural response
of stainless steel I-section members are created and validated against experimental results
from the literature. Using the validated finite element models, extensive numerical parametric studies are performed, the results of which are utilised to investigate the accuracy
and reliability of existing design provisions for duplex and ferritic stainless steel I-section
beam-columns. Scope for improvement is revealed, prompting the development of new beamcolumn design rules that are compatible with those provided for carbon steel members in
EN 1993-1-1. The new proposals are shown to offer improved accuracy and consistency over
existing design provisions for duplex and ferritic stainless steel I-section members under combined axial compression and bending, and are recommended for inclusion in the upcoming
revision to EN 1993-1-4. The reliability of the proposed design rules, with a partial safety
factor γM1 = 1.1, is demonstrated.
Date Issued
2021-11-15
Date Acceptance
2021-09-01
Citation
Engineering Structures, 2021, 247, pp.1-17
ISSN
0141-0296
Publisher
Elsevier
Start Page
1
End Page
17
Journal / Book Title
Engineering Structures
Volume
247
Copyright Statement
© 2021 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.sciencedirect.com/science/article/pii/S0141029621012694?via%3Dihub
Subjects
Civil Engineering
0905 Civil Engineering
0912 Materials Engineering
0915 Interdisciplinary Engineering
Publication Status
Published
Date Publish Online
2021-09-15