Bearing Safety of Tensile Anchor Plate of Long-span Cable-stayed Bridge

摘要

Cable-girder anchorage is the key part of bearing safety of cable-stayed bridge, which needs more attention. In this paper, the cable-girder anchorage of Zhanjiang Gulf Bridge is studied. To obtain the bearing safety of the structure, a full-scale model test on tensile anchor plate is presented. Comparing the results of simulation with test data, the mechanism of cable force transmission and the principle of distribution of stress are analyzed. The study indicates that the bearing safety of tensile anchor plate is satisfied with the requirement, but the stress concentration in some details is severe and these places should be designed carefully.