Analysis Of Stable Factors Of Cfst Arch Bridge With Long-span

In this master dissertation,the research results of domestic and overseas scholars on stability and ultimate bearing capacity of Concrete-Filled Steel-Tube Arch Bridge are roundly summarized first.Then elaborates the base way of CFST arch bridge' s stability and ultimate bearing capacity analysis.The study based on the project of WuXia bridge in SiChuang , analyzed the effects of location and formation of crossbars,tube's diameter of crossbars,tube's thickness of crossbars and different structure details of the arch rib. The internal force of the first two factors was further analysised. The coeffient of stability and collapse shape of diferent state are discussed in detail. Some important conclusions are given,which are useful for reference to the readers who engage in bridge design of such kind.