悬索桥主缆内力测试估算方法与应用

On the testing and estimating methods for the internal force of the main cable on the suspension bridge and its application

提出了测试估算悬索桥主缆内力的方法——振动法,介绍了其估算原理,对拉索固有振动方程的建立及锚跨索股张力的计算公式进行了探讨,通过对某大桥锚跨张力测试及主缆总张力估算实例,证明了该方法的实用性。

The paper points out the vibration method which is the testing and estimating method for the internal force of the main cable on the suspension bridge, explores the establishment of the natural vibration equation of the cable and the calculation for the intension of the anchor span strand, and proves the practicality of the method by the tension test of the anchor span and the estimation of the general intension of the main cable.