Analysis Of Construction Process And Response Of Earthquake For Concrete-Filled Steel Tubular Arch Bridge

This dissertation take example of Rongzhou Bridge in Yibin acrossing Jinsha river, according to the variety of construction load, calculation and analysis of the construction process is performed with the help of the FEM software, the whole process of construction is simulated and the response of earthquake is analysed. The content of the dissertation is as follows:1. Summarize the develop situation and bearing property of long-span CFST arch bridge.2. With the help of the FEA software, simulated the rib-hoisting process, calculated the cable force and flexibility.3. Space finite element model of CFST arch bridge was set up to analysis the mechanical property of construction process; geometric non-linearity was considered. The development of stress and displacement during construction process was predicted to provide direction for actual construction control.4. Analysis the response of earthquake for CFST arch bridge, internal force and displacement of structural crucial sections were compared and discussed for hecking the seismic safety of the structure, gets some beneficial conclusions. It will offer reference to the bridge design.