Performance of Concrete-Filled Double-Skin Steel Tube Columns: A Critical Review of Weaknesses and Solutions

Authors

  • Aymen Mohammed College of Engineering, Department of Civil Engineering, University Tenaga Nasional, Malaysia
  • Agusril Syamsir College of Engineering, Department of Civil Engineering, University Tenaga Nasional, Malaysia
  • Assim Lateef College of Engineering, Department of Civil Engineering, University of Tikrit, Tikrit, Iraq
  • Hassan Algaifi College of Engineering, Department of Civil Engineering, University Tenaga Nasional, Malaysia
Volume: 15 | Issue: 3 | Pages: 23767-23776 | June 2025 | https://doi.org/10.48084/etasr.11152

Abstract

Concrete-Filled Double-Skin Steel Tube (CFDST) columns are a cutting-edge structural option that blends the compressive qualities of concrete with the strength and flexibility of steel. This review study offers a thorough analysis of the body of knowledge on CFDST columns, concentrating on their applications, design factors, and structural behavior. A critical examination is conducted on significant elements, such as dynamic performance, fire resistance, local and global buckling, steel-concrete bonding, and load-bearing capacity. The report also highlights construction-related challenges, such as complex bonding and manufacturing processes—inefficiencies, while exploring alternatives, like implementing shear connections, advanced concrete materials, and optimum designs. According to the assessment, CFDST columns have several important advantages that make them appropriate for high-rise structures, bridges, and infrastructure in challenging conditions. These advantages include their high strength-to-weight ratio, enhanced seismic performance, and sustainability benefits. The knowledge gaps and areas that need more investigation, such as long-term durability and creative design approaches, are also discussed. To ensure that CFDST columns are widely used in contemporary construction, this study intends to direct future research, improve design procedures, and aid in creating engineering standards. The following points may improve the conclusion parameters commonly used in CFDST column studies: Column length-to-outer diameter ratio (L/Do), typically between 3 and 5, and spacing of shear connectors of approximately 50 mm to 200 mm.

Keywords:

CFDST, shear connectors, outer tube, composite columns

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[1]
Mohammed, A., Syamsir, A., Lateef, A. and Algaifi, H. 2025. Performance of Concrete-Filled Double-Skin Steel Tube Columns: A Critical Review of Weaknesses and Solutions. Engineering, Technology & Applied Science Research. 15, 3 (Jun. 2025), 23767–23776. DOI:https://doi.org/10.48084/etasr.11152.

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