Experimental and numerical investigations into the compressive behaviour of circular concrete-filled double-skin steel tubular columns with bolted shear studs
Description
Eight medium-length circular concrete-filled double-skin steel tubular (CFDST) columns were examined under axial compression to evaluate the influence of bolted shear studs on the axial performance of CFDST columns. The specimens comprised six columns with bolted shear studs with longitudinal spacings of 100 mm, 75 mm, and 50 mm, and two control columns without bolted shear studs for comparison. The investigated parameters were the failure mechanisms, load-displacement curves, initial axial stiffness, compressive strength, toughness, ductility, residual strength, as well as load-strain responses. Besides, a finite element (FE) model was developed and validated against experimental results to further investigate the performance of columns. The test results demonstrated that the bolted shear studs avoided shear failure and significantly increased the ductility of the specimens. Reducing the bolted shear stud spacing reduced the intensity of local buckling in the outer tube and improved the confinement effect. Additionally, the confinement effect provided by the outer tube was remarkably improved by introducing the bolted shear studs.
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| ID Code: | 236565 | ||
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| Item Type: | Contribution to Journal (Journal Article) | ||
| Refereed: | Yes | ||
| ORCID iD: |
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| Additional Information: | Funding Information: The authors gratefully acknowledge the University of Malaya for providing financial support through the SATU Joint Research Program (Project No: ST005-2019) and the University of Malaya Research Grant (Faculty Program – Project No. GPF004A-2019), as well as the Ministry of Higher Education, Malaysia for providing the Fundamental Research Grant Scheme (FRGS/1/2020/TK0/UM/02/27). | ||
| Measurements or Duration: | 19 pages | ||
| Keywords: | Axial behaviour, Concrete-filled, Experimental study, Finite element analysis, Shear stud, Stiffener | ||
| DOI: | 10.1016/j.istruc.2022.10.102 | ||
| ISSN: | 2352-0124 | ||
| Pure ID: | 118043584 | ||
| Divisions: | Current > Research Centres > Centre for Materials Science Current > QUT Faculties and Divisions > Faculty of Science Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Civil & Environmental Engineering |
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| Funding Information: | The authors gratefully acknowledge the University of Malaya for providing financial support through the SATU Joint Research Program (Project No: ST005-2019) and the University of Malaya Research Grant (Faculty Program – Project No. GPF004A-2019), as well as the Ministry of Higher Education, Malaysia for providing the Fundamental Research Grant Scheme (FRGS/1/2020/TK0/UM/02/27). | ||
| Copyright Owner: | 2022 Institution of Structural Engineers | ||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||
| Deposited On: | 29 Nov 2022 04:15 | ||
| Last Modified: | 26 Jul 2024 12:22 |
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