Stress Analysis Of The Cable Tower Anchorage Zone Of Cable-Stayed Bridge

Based on ChaHe bridge of DeZhou, ShanDon, the stress of the cable tower anchorage zone of cable-stayed bridge is studied in detail. ShanDong DeZhou ChaHe bridge is a single-tower, double cable plane, prestressed concrete cable-stayed bridge, which span length is 90 meter and the cross-section of the tower anchorage zone is single-box, single-cell prestressed concret structure.This article firstly formulate theory of loss of circumferential prestressed reinforcement. Secondly, the whole bridge static structural analysis is studied. Using large-scale finite element analysis software, ANSYS, simulation calculation of the anchorage zone in reality work condition is done. So stress distribution is obtained, and the structure is demonstrated safety. At last, the simplified calculation model of the anchorage zone is initiative discussed. Using plane finite element mode, plane beam system finite element and space finite element, the anchorage zone is analog calculated and some related suggestion is represented. All the result are valuable to the design, construction, monitor and control of the cable tower anchorage zone of cable-stayed bridge.