Abstract
With structural and economic benefits, concrete filled steel tubular (CFST) columns have been widely used in multistorey buildings in which the beam-to-column joints play an important role in ensuring the structural integrity and robustness of the entire building under external actions. Various joining techniques have been developed to connect CFST columns with steel and composite beams. This paper presents a comprehensive review on the development of a wide range of joining methods for CFST columns used in steel-concrete composite buildings. Various types of CFST connections using bolting and welding methods are covered. Their behaviours under various actions such as earthquake, fire, and impact are then examined and evaluated to explore their practical applicability. In addition, the developments of numerical and analytical models for the analysis and design of CFST connections are also discussed. This review focuses on the connections between CFST columns and steel/composite beams only, whilst the connections between CFST columns and reinforced concrete (RC) beams are not covered in this study due to space limitations.
Published Version
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