Application of concrete filled steel tubular arch bridges in China

China is a mountainous developing country, in which a lot of streams and rivers rush through deep valleys. Arch bridges are economically applicable to span river valleys and deep ravines with high-gradient rocky riverbank and fast water flow. Concrete-Filled Steel Tubes (CFST) are ideal structural solution for arch bridges in China because of their high compressive strength as well as efficiency in construction. This paper conducted an extensive survey of the standing CFST arch bridges in China. The design of this kind of bridge, including the structural information of the bridge, the geometries and material properties of the arch, and the construction method of the arch are discussed. Typical CFST arch bridges were introduced in more details. Suggestions on the design of this kind of bridges were brought forward.