Behaviour of structural stainless steel cross-sections under combined loading - Part I: Experimental study

Title: Behaviour of structural stainless steel cross-sections under combined loading - Part I: Experimental study
Authors: Zhao, O
Rossi, B
Gardner, L
Young, B
Item Type: Journal Article
Abstract: Stainless steel has been gaining increasing use in a variety of engineering applications due to its unique combination of mechanical properties, durability and aesthetics. Significant progress in the development of structural design guidance has been made in recent years, underpinned by sound research. However, an area that has remained relatively unexplored is that of combined loading. Testing and analysis of stainless steel cross-sections under combined axial load and bending is therefore the subject of the present paper and the companion paper (Zhao et al., submitted for publication). The experimental programme covers both austenitic and duplex stainless steels, and five cross-section sizes including three square hollow sections (SHS) and two rectangular hollow sections (RHS). In total, five stub column tests, five four-point bending tests, 20 uniaxial bending plus compression tests and four biaxial bending plus compression tests were carried out to investigate the cross-sectional behaviour of stainless steel tubular sections under combined loading. The initial loading eccentricities for the combined loading tests were varied to provide a wide range of bending moment-to-axial load ratios. For each type of test, the test setup, experimental procedures, full experimental load–deformation histories and key test results are reported in detail. All the experimental results are then employed in the companion paper (Zhao et al., submitted for publication) for the validation of finite element (FE) models, by means of which a series of parametric results is generated, and for the assessment of the design provisions given in EN 1993-1-4 (2006) and SEI/ASCE-8 (2002). Improved design rules for stainless steel cross-sections under combined loading are also sought through extension of the deformation-based Continuous Strength Method (CSM).
Issue Date: 4-Dec-2014
Date of Acceptance: 10-Nov-2014
URI: http://hdl.handle.net/10044/1/41873
DOI: https://dx.doi.org/10.1016/j.engstruct.2014.11.014
ISSN: 1873-7323
Publisher: Elsevier
Start Page: 236
End Page: 246
Journal / Book Title: Engineering Structures
Volume: 89
Copyright Statement: © 2014 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Science & Technology
Technology
Engineering, Civil
Engineering
Austenitic stainless steel
Cold-formed
Combined loading tests
Cross-sectional behaviour
Duplex stainless steel
Four-point bending tests
Hollow section
Stub column tests
Civil Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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