荷麻溪特大桥索力测试方法研究

Cable Force Measurement of Hemaxi Cable Stayed Bridge

主要分析了斜拉索的振动原理以及垂度、弯曲刚度、索长对斜拉索索力的影响。基于荷麻溪斜拉桥的自身特点考虑了施工过程中的索力影响因素,实现了可以利用自振频率和油压表结合的方法对斜拉索的索力进行精确控制。

The theory of method of self - vibration frequency of cable and the cable force with the influence of many factors, such as the bending stiffness, the sag and length of the cable, is introduced. The influence of factors was considered during the construction of Hemaxi Cable Stayed Bridge. The measured results of the cable forces shows that the cable force can be accuately controlled by the cooperation of the frequency of cable and the oil pressue indicator.