Concrete Filled Steel Tubes

Concrete filled steel tubes cfts are composite members consisting of an steel tube infilled with concrete.

Concrete filled steel tubes.

Concrete filled steel tubes cft for bridge foundations and substructures. There exist applications in japan and europe where cfts are also used as bridge piers. Olympia wa march 23 2010. Zhenhai guo in principles of reinforced concrete 2014.

Typical cft cross sections 6. Concrete filled steel tubes cfst are currently being increasingly used in the construction of modern. Charles roeder dawn lehman. Introduction concrete filled steel tubes cft uses the advantage of both steel and concrete infill concrete in steel tube delays local buckling steel tube reinforces the concrete to resist tensile forces improves its compression stress and ductility 5.

Concrete filled steel tube cfst structure is a composite structure and consists of a steel tube that is filled up with concrete. 9 3 1 mechanical characteristic and mechanism. It is well know that the interaction between steel tube and its core concrete is the. If the spiral bar in a concrete column is very closely spaced and it is combined with the longitudinal reinforcement and the cover concrete is cancelled the steel tube confined concrete or the concrete filled steel tube is then formed.