Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/163484
Title: Local–flexural interactive buckling behaviour and resistance of press-braked stainless steel slender channel section columns
Authors: Li, Shuai
Zhao, Ou
Keywords: Engineering::Civil engineering
Issue Date: 2022
Source: Li, S. & Zhao, O. (2022). Local–flexural interactive buckling behaviour and resistance of press-braked stainless steel slender channel section columns. Engineering Structures, 270, 114871-. https://dx.doi.org/10.1016/j.engstruct.2022.114871
Journal: Engineering Structures 
Abstract: The present paper reports experimental and numerical studies of the local–flexural interactive buckling behaviour and resistance of press-braked stainless steel slender channel section columns. A testing programme was firstly performed, including tensile coupon tests, initial geometric imperfection measurements and ten pin-ended column tests. The pin-ended column test setup, procedures and results were fully reported and analysed. The progression of local buckling and flexural buckling was discussed in detail. Following the testing programme, a numerical modelling programme was conducted, where finite element models were developed to replicate the test responses and then employed to perform parametric studies to generate further numerical data over a wide range of cross-section dimensions and member effective lengths. The obtained test and numerical data were employed to assess the accuracy of the relevant design rules for press-braked stainless steel slender channel section columns, as set out in the European code, American specification and Australian/New Zealand standard. The assessment results revealed that the European code leads to conservative and scattered interactive buckling resistance predictions, while the American specification and Australian/New Zealand standard result in many unsafe and scattered interactive buckling resistance predictions. A new design approach was then developed, based on the Eurocode column buckling curve and the continuous strength method, and shown to lead to accurate, consistent and safe interactive buckling resistance predictions for press-braked stainless steel slender channel section columns. The reliability of the new design approach was confirmed by means of statical analyses. Besides, the relevant design rules for press-braked carbon steel slender channel section columns, as given in the North American specification, were assessed, and shown to result in unsafe though consistent interactive buckling resistance predictions, when used for their stainless steel counterparts.
URI: https://hdl.handle.net/10356/163484
ISSN: 0141-0296
DOI: 10.1016/j.engstruct.2022.114871
Rights: © 2022 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

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