Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections

Title: Flexural behaviour of hot-finished high strength steel square and rectangular hollow sections
Authors: Wang, J
Afshan, S
Gkantou, M
Theofanous, M
Baniotopoulos, C
Gardner, L
Item Type: Journal Article
Abstract: High strength steels, considered in the context of the structural Eurocodes, as steels with a yield strength over 460 MPa, are gaining increasing attention from structural engineers and researchers owing to their potential to enable lighter and more economic structures. This paper focuses on the bending strength of hot-finished high strength steel (HSS) square and rectangular hollow sections; the results of detailed experimental and numerical studies are presented and structural design rules for HSS cross-sections are proposed. A total of 22 in-plane bending tests, in three-point bending and four-point bending configurations, on HSS sections in grades S460 and S690 were conducted. The experimental results were replicated by means of non-linear finite element modelling. Upon validation of the finite element models, parametric studies were performed to assess the structural response of HSS sections over a wider range of cross-section slenderness, cross-section aspect ratio and moment gradient. The experimental results combined with the obtained numerical results were used to assess the suitability of the current European (EN 1993-1-1 and EN 1993-1-12) cross-section classification limits for HSS structural components. The reliability of the proposed cross-section classification limits was verified by means of the EN 1990 — Annex D method.
Issue Date: 23-Jan-2016
Date of Acceptance: 13-Jan-2016
URI: http://hdl.handle.net/10044/1/38994
DOI: http://dx.doi.org/10.1016/j.jcsr.2016.01.017
ISSN: 1873-5983
Publisher: Elsevier
Start Page: 97
End Page: 109
Journal / Book Title: Journal of Constructional Steel Research
Volume: 121
Copyright Statement: © 2016 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Engineering
Bending
Eurocode 3
Experiments
High strength steel
Hot-finished
Moment capacity
Slenderness limits
Testing
STUB COLUMNS
SLENDERNESS LIMITS
BUCKLING BEHAVIOR
ROTATION CAPACITY
COMPRESSION TESTS
RESIDUAL-STRESS
CROSS-SECTIONS
BOX-COLUMNS
H-SECTION
MEMBERS
Civil Engineering
0905 Civil Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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