Bracket Structure Stress Analysis of Rotating Construction Cable-stayed Bridge of Thousands of Tons

Abstract

Based on the rotating construction cable-stayed bridge of thousands of tons, dynamic simulation of bracket structure in rotating construction was analyzed with ANSYS finite element software. The result shows that with the common influence of gravity, traction and prestress, the overall bracket structure presents compressive stress mainly of stress state. Traction force of the impact is not big, considering alone effect of traction, the whole stress level of bracket structure is very low. Under the effect of prestress, bracket structure presents a huge pressure stress in horizontal direction to prevent accidental tilt in the rotating process, and parts of the steel bundle should be removed after the rotation.