扭转索面斜拉桥索力调整

Cable Force Adjustment of Cable-Stayed Bridge with Twisting Cable Plane

为研究较为合理的扭转索面斜拉桥索力调整的方法,结合工程实践,阐述索力调整的目标和原则,利用影响矩阵法和桥梁结构有限元分析软件Midas Civil 2012,采用试算法制定调索方案,并对调索效果进行分析。监测结果表明:索力调整后,全桥索力接近目标值,主梁线形和塔偏也比较理想。

In order to explore the reasonable method to adjust the cable force of the cable-stayed bridge with the twisting cable plane, the objectives and principles of the cable tension adjustment combining with engineering practice is discussed. The influence matrix method, the finite element analysis software of bridge structure, Midas Civil 2012 and a trial method are used to design the scheme and analyze the effect of the adjustment. The monitoring results show that the cable force of the bridge is close to the target value after the adjustment of the cable force, and the bridge line and tower are also ideal.