ADVANCES IN STUDY ON DYNAMIC BEHAVIOR OF CONCRETE-FILLED STEEL TUBE

摘要

Advances in study on dynamic behavior of Concrete-Filled Steel Tube (CFST) including CFST components, CFST frames and CFST arch bridges are presented with the analysis of results of experimental and theoretical analysis. It is showed that although some work has been done on dynamic behavior of CFST, a few key issues, such as restoring force model, damping, more rational integral structural model, seismic analysis method, etc, need to be studied on the basis of interaction between steel tube and core concrete to push forward the development of CFST theory.