Stress Analysis Around Anchorage Zones Of Cable-Stayed Bridge

The anchorage zones of cable-stayed bridges, which bear giant cable forces and have complicated structure, are keys to structure design. It is important to know the stress distribution of anchorage zones well. Not only is the model test a useful method to deal with this problem, but also the finite element method is important to do with it before the model test. The finite element method is able to improve the model test and makes up the deficiency of it. Based on the cable-stayed bridge in XuZhou, this thesis analyses the effect of anchorage zones of cable-stayed bridges according to the finite element software of ANSYS. The content of the paper is as follows:1. The model simulation of cable-pylon anchorage zones is presented.2. The stress distribution of cable-pylon anchorage zones under cable forces is analyzed.3. The stress distribution of cable-pylon anchorage zones under U-prestressing tendon is analyzed.4. The stress distribution of cable-pylon anchorage zones under cable forces and U-prestressing tendon is analyzed.5. The model simulation of cable-girder anchorage zones is presented.6. The stress distribution of cable-girder anchorage zones under cable forces and U-prestressing tendon is analyzed.With the analysis of the results, some valuable rules were got and can be used for reference in design for homothetic anchorage zones.