浅析斜拉桥加固改造工程的索力测试方法

Discussion of Cable Power Test Methods of Reinforcement and Reconstruction of the Cable-stayed Bridge

本文以郧县汉江公路大桥加固改造工程的施工监控项目为工程背景,首先推导出脉动振动频率的索力计算公式,该公式消除了弯曲刚度对索力的影响;其次介绍了斜拉索索力测试过程;最后利用ANSYS对工程中的斜拉索进行模态分析,验证了推导公式的正确性。

In this paper, construction monitoring Projects of reinforcement and reconstruction of the Yunxian Han River Bridge for the engineering background. First of all Derived the cable force calculation formula through the vibration--frequency method, The formula to eliminate the impact of the bending stiffness of cable forces Secondly, Introduce the cable power of testing process~ Finally, modal analysis of cable--stayed is carried out for using ANSYS, to verify the correctness of the derived formula.