Zhu, Y., Yun, X. and Gardner, L. (2023) Behaviour, finite element modelling and design of high strength steel homogeneous and hybrid welded I‐section beams. ce/papers, 6 (3-4). pp. 539-544. ISSN 2509-7075
Abstract
The behaviour and design of homogeneous and hybrid high strength steel (HSS) beams are addressed in the present study. Six in-plane three-point bending tests on three different welded I-sections were first conducted. Following the experimental investigation, a finite element (FE) modelling programme was performed, which included a validation study confirming the accuracy of the developed FE models in replicating the flexural behaviour of HSS welded I-section beams, and a parametric study generating additional FE data on HSS welded I-section beams over a broader range of cross-sectional slendernesses, steel grades and loading configurations. Then, the suitability of the current Eurocode 3 cross-section slenderness limits for HSS homogeneous and hybrid welded I-sections in bending were evaluated. It is shown that the current Eurocode Class 2 and Class 3 slenderness limits are suitable for the classification of the outstand flange (in compression) and internal web (in bending) elements of both HSS homogeneous and hybrid welded I-sections subjected to major axis bending, while stricter Class 1 slenderness limits are considered necessary to achieve sufficient rotation capacity for plastic design. The findings indicate that plastic design can be used for HSS structures, provided the proposed stricter Class 1 slenderness limits are employed. Further work is underway to develop advanced design approaches using second-order inelastic analysis with strain limits for HSS welded I-section members.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. Published by Ernst & Sohn GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
Keywords: | Bending tests; Cross-section classification; Finite element modelling; High strength steel (HSS); Hybrid section; Rotation capacity; Welded I-section |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 20 Sep 2023 10:19 |
Last Modified: | 20 Sep 2023 10:19 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/cepa.2340 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:203479 |