Impact of steel-concrete slippage on CFST column load capacity under complex loading conditions
Concrete-Filled Steel Tubular (CFST) columns are composite structures consisting of a steel tube and a concrete core, offering high load-bearing capacity, especially under complex loading conditions. When CFST columns are subjected to simultaneous compression, bending and torsion, the interaction be...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
The University of Danang
2024-11-01
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| Series: | Tạp chí Khoa học và Công nghệ |
| Subjects: | |
| Online Access: | https://jst-ud.vn/jst-ud/article/view/9541 |
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| Summary: | Concrete-Filled Steel Tubular (CFST) columns are composite structures consisting of a steel tube and a concrete core, offering high load-bearing capacity, especially under complex loading conditions. When CFST columns are subjected to simultaneous compression, bending and torsion, the interaction between the concrete core and the steel tube plays a crucial role in the distribution of stress and deformation. A key factor that needs to be assessed is the relative slippage between the steel tube and the concrete core, as it directly impacts the load-bearing capacity and stability of the column. This study shows that when compression/bending and torsion are applied simultaneously, the bond between the concrete core and steel tube may weaken, leading to slippage, which in turn reduces the structural system’s load-bearing efficiency. Understanding and accurately assessing the impact of this slippage is essential for improving design, ensuring CFST columns achieve optimal load-bearing performance in practice. |
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| ISSN: | 1859-1531 |