120 m+160 m独塔斜拉桥二次调索控制研究

Study on Secondary Cable Control of 120 m+160 m Single-Tower Cable-Stayed Bridge

为了提升调索施工过程的安全性,为桥梁结构后续运营提供保障,论文以沥桂大桥二次调索施工工程为背景,对斜拉桥施工过程仿真计算、成桥后索力的调整等方面进行了论述。结果表明,该桥梁调索过程中实际状态参数与模拟分析结果偏差较小,通过二次索力调整达到了设计要求的成桥状态。

In order to improve the safety of the cable-based construction process and provide guarantee for the subsequent operation of the bridge structure,this paper discusses the simulation calculation of the cable-stayed bridge construction process and the adjustment of cable-stayed force after bridge formation against the background of the secondary cable-controlled construction project of Ligui Bridge.The results show that the actual state parameters ofthe bridge cable adjustment process have little deviation from the simulation analysis results,and the bridge formation state required by the secondary cable force adjustment is achieved.