Stub Column Behavior of Concrete-Filled Cold-Formed Steel Semi-Oval Sections
Publication: Journal of Structural Engineering
Volume 149, Issue 3
Abstract
This paper is an attempt to investigate the structural behavior of concrete-filled cold-formed steel stub columns with semi-oval cross sections via experimental and numerical studies. The test campaign included thirteen stub columns tests on four semi-oval sections infilled with both normal and high strength concrete. The details of test campaign and key observations are described and discussed. Validated against the test data obtained from this study, finite element model was developed to emulate the compressive behavior observed from tests and then used to derive more numerical data via parametric analyses. It is worth noting that the current codified design provisions for concrete-filled steel tubular columns do not explicitly include the semi-oval sections investigated herein. The acquired results from the test campaign and numerical analyses were employed to evaluate the applicability of the American Specifications (ANSI/AISC 360 and ACI318) as well as the European Code (EN1994-1-1). The evaluation results indicate that the aforementioned design rules are generally conservative for compressive strength predictions, among which the predictions by the European Code are the most accurate. Design method considering strength enhancement and confinement effect was proposed with improved accuracy. It is suggested to use the proposed design method for the compressive design of concrete-filled cold-formed steel semi-oval stub columns.
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Data Availability Statement
All data, models, and code generated or used during the study are available upon reasonable request.
Acknowledgments
The authors are grateful to Shenyang Dongyang Special Section Tube for supplying the test specimens. The research work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 17267416). The authors would also like to thank the support from the National Natural Science Foundation of China (No. 52108157).
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 149 • Issue 3 • March 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: May 18, 2022
Accepted: Nov 2, 2022
Published online: Jan 2, 2023
Published in print: Mar 1, 2023
Discussion open until: Jun 2, 2023
ASCE Technical Topics:
- Analysis (by type)
- Cold-formed steel
- Columns
- Compressive strength
- Concrete
- Data analysis
- Engineering fundamentals
- Engineering materials (by type)
- High-strength concrete
- Material mechanics
- Material properties
- Materials engineering
- Metals (material)
- Methodology (by type)
- Numerical analysis
- Research methods (by type)
- Steel
- Steel columns
- Strength of materials
- Structural behavior
- Structural engineering
- Structural members
- Structural systems
Authors
Metrics & Citations
Metrics
Citations
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Cited by
- Huanyang Zhang, Xuhong Zhou, Ke Ke, Michael C. H. Yam, Yu Shi, Haibin Zhang, Hybrid Self-Centering Connection Employing Energy Dissipation Sequences: Experimental Study and a Structural Seismic Demand Perspective, Journal of Structural Engineering, 10.1061/JSENDH.STENG-12306, 149, 11, (2023).
- Man-Tai Chen, Wenkang Zuo, Ben Young, Tests of Cold-Formed Steel T-Joints with Semi-Oval Hollow Section Chord, Journal of Structural Engineering, 10.1061/JSENDH.STENG-12277, 149, 8, (2023).
- Zeyu Zhou, Yiyi Chen, Michael C.H. Yam, Ke Ke, Xiuzhang He, Experimental investigation of a high strength steel frame with curved knee braces subjected to extreme earthquakes, Thin-Walled Structures, 10.1016/j.tws.2023.110596, 185, (110596), (2023).
- Xuhong Zhou, Yun Huang, Ke Ke, Michael C.H. Yam, Huanyang Zhang, Han Fang, Large-size shape memory alloy plates subjected to cyclic tension: Towards novel self-centring connections in steel frames, Thin-Walled Structures, 10.1016/j.tws.2023.110591, 185, (110591), (2023).
- M.H. Lai, Y.H. Lin, Y.Y. Jin, Q. Fei, Z.C. Wang, J.C.M. Ho, Uni-axial behaviour of steel slag concrete-filled-steel-tube columns with external confinement, Thin-Walled Structures, 10.1016/j.tws.2023.110562, 185, (110562), (2023).
- Man-Tai Chen, Ao Cai, Madhup Pandey, Chen Shen, Yuelong Zhang, Lili Hu, Mechanical properties of high strength steels and weld metals at arctic low temperatures, Thin-Walled Structures, 10.1016/j.tws.2023.110543, 185, (110543), (2023).
- Junjie Wang, Ke Ke, Michael C.H. Yam, Minghong Teng, Wei Wang, Improving structural robustness of steel frame buildings by enhancing floor deck connections, Journal of Constructional Steel Research, 10.1016/j.jcsr.2023.107842, 204, (107842), (2023).
- Ke Ke, Michael C.H. Yam, Ping Zhang, Yu Shi, Yong Li, Sijia Liu, Self-centring damper with multi-energy-dissipation mechanisms: Insights and structural seismic demand perspective, Journal of Constructional Steel Research, 10.1016/j.jcsr.2023.107837, 204, (107837), (2023).
- Man-Tai Chen, Yangyu Chen, Ben Young, Experimental investigation on cold-formed steel elliptical hollow section T-joints, Engineering Structures, 10.1016/j.engstruct.2023.115593, 283, (115593), (2023).