Cross-Section Behavior and Design of Hot-Rolled Stainless Steel Channel Sections under Major-Axis Combined Loading
Publication: Journal of Structural Engineering
Volume 148, Issue 8
Abstract
This paper reports a comprehensive experimental and numerical investigation of the cross-section behavior and capacity of hot-rolled stainless steel channel sections subjected to combined compression and major-axis bending. An experimental program was first carried out and comprised measurement of initial geometric imperfections and 10 eccentric compression tests. This was accompanied by a numerical modeling program, in which nonlinear finite-element models were first built to replicate the test observations and subsequently utilized to carry out parametric studies for producing more numerical data over a broader spectrum of loading combinations and cross-section dimensions. The data obtained from experiments and parametric studies were utilized to assess the accuracy of the relevant codified interaction curves as used in Europe and the US. The assessments showed that the codified interaction curves resulted in conservative capacity predictions due to the lack of proper consideration of the beneficial stress redistribution and material strain hardening. To overcome these shortcomings, new interaction curves were developed and resulted in greatly improved design accuracy in comparison with the codified interaction curves.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The specimens tested in the present paper were sponsored by Stainless Structurals Asia. The authors appreciate Mr. Yong Cheng Lim, Mr. Cheng Hoon Tui, David, and Mr. Subasanran Chelladurai for providing various assistances during the experiments. The financial supports from the RSA Endowment Fund (Award No. 04INS000039C120) are acknowledged.
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Published In
Journal of Structural Engineering
Volume 148 • Issue 8 • August 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Nov 8, 2021
Accepted: Mar 28, 2022
Published online: Jun 15, 2022
Published in print: Aug 1, 2022
Discussion open until: Nov 15, 2022
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