Stress Analysis and Optimization Design for Anchor Area of Arch Truss of Oblique-Span Steel Arch Bridge

Based on the oblique-span steel arch bridge in Jinzhou, this essay analyzed the configuration character of the anchorage area of arch truss, set up a model of finite element of steel anchor box, carried out simulation analysis of steel anchor box segment of arch truss of using finite element method and described the stress distribution features of anchor box. The results show that even with relevant reinforcement design outside diaphragm plate, there are areas of stress concentration on the slabs of anchor box, but the whole capacity of the steel anchor box is good, the cable force transfers fluently and the cable tension can be reasonably distributed over arch truss.