Analysis method and engineering application of anchorage zone of cable-stayed bridge pylon's prestress

Large-span cable-stayed bridge tower is now mostly concrete tower.In order to resist tensile stress generated by cable forces,It is necessary to layout prestressed cable.In this paper,take a large-span Hanjiatuo cable-stayed bridge in the construction of Yangtze River as an example,modeling by finite element method,simulating the #-shaped prestressed cable's effect on the tower layout area of prestressed force situation analysis and research.As a reference,the paper will improve the anchorage zone of prestressed structure and configuration design detail and the safety performance of the structure.