Seismic Performance of Concrete-Filled Steel Tubular (CFST) Structures

Concrete-filled steel tube (CFST) consists of outer steel tube and concrete in-filled, which combines the merits of steel and concrete. This kind of composite member has various advantages, i.e., high strength and high ductility, favorable cyclic behaviour, high fire resistance and excellent constructability, have been recognized all over the world. Nowadays CFST has been widely used in construction, including many industrial facilities. This paper gives a brief review on the investigations of seismic behaviour of CFST members, joints, planar frames, hybrid walls and high-rise buildings, especially in China. The development of concrete-filled steel tubular members’ family is also introduced. Some industrial projects utilizing CFST members are also presented.