Flexural buckling of press-braked stainless steel Z-section columns: Testing, numerical modelling and design

被引：0

作者：

Li, Shuai ^{[1
]}

Zhao, Ou ^{[1
]}

机构：

[1] School of Civil and Environmental Engineering, Nanyang Technological University, Singapore

来源：

Engineering Structures | 2024年 / 300卷

关键词：

Austenitic stainless steel - Buckling - Presses (machine tools) - Steel testing;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The flexural buckling behaviour and resistances of press-braked stainless steel Z-section columns are investigated in this paper, based on experiments and numerical modelling. An experimental investigation was conducted on two press-braked stainless steel Z-sections and included material testing, initial geometric imperfection measurements and twelve fixed-ended column tests. Minor-axis flexural buckling was observed for all press-braked stainless steel Z-section column specimens upon testing. The key obtained fixed-ended column test results, including failure loads, load–deformation histories and failure modes, were fully reported. Following the experimental investigation, a numerical investigation was performed, with finite element models developed to validate against the fixed-ended column test results and then used to conduct parametric studies to generate additional numerical data. On the basis of the test and numerical data, the relevant buckling curves, as specified in the European code, American specification and Australian/New Zealand standard, were evaluated and shown to provide accurate and consistent flexural buckling resistance predictions for press-braked stainless steel Z-section columns. © 2023 Elsevier Ltd

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