斜拉桥缆索动力特性研究

针对斜拉桥正逐步向大跨径、密索体系发展，而除测振法外，其它测量方法均难以满足斜拉桥施工、架设至竣工后的随时、迅速、准确地测定缆索索力的要求的状况，进行了斜拉桥结构模型试验，研究了原型的特性，为原型设计提供依据．在模型试验中，采用了动力测试的方法来测定缆索的索力，从而使模型试验与斜拉桥实桥缆索索力的动力测试更紧密地结合起来．

A Study on Dynamic Character of Cable Force of Cable stayed Bridge

The cable stayed bridge tends to be of big stayed, densed cables system. All the methods, but vibration measurment, are difficult to satisfy the demands of cable stayed bridge on prompt, fast and accurate measurements for the cable force during the construction and erection of the bridge and after its completion. By the structure modeling experiments of the cable stayed bridge, the character of its prototype can be studied so as to provide scientific basis for the design of the prototype. In this paper, dynamic experiments is used for measuring the cable force so as to closely combine the model experiments with dynamic measurements of the cable force of the solid cable stayed bridge.