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CABLE FORCE IDENTIFICATION BASED ON VIBRATION MEASUREMENTS

机译:基于振动测量的电缆力识别

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Cable is one of the important components of arch bridges, cable-stayed bridges and suspension bridges. It is very important to acquire the cable tensions for bridge construction, assessment and long-term health monitoring. The vibration-based method is usually used for measuring cable tensions because of its simpleness and speediness. In this paper, the method for calculating cable tensions of short cables used in arch bridges based on measured free-vibration frequencies is investigated. Considering different cable anchors, two methods are used for analytical calculation. To validate the performance of the proposed method, a field test of stay cables is conducted. Results show that the calculated frequencies can achieve a good agreement with the measured ones
机译:电缆是拱桥,缆绳桥和悬架桥的重要组成部分之一。获取桥梁施工,评估和长期健康监测的电缆紧张局部非常重要。基于振动的方法通常用于测量电缆紧张局势,因为其简单性和速度。本文研究了基于测量的自由振动频率计算拱桥中使用的短电缆电缆紧张的方法。考虑到不同的电缆锚,两种方法用于分析计算。为了验证所提出的方法的性能,进行了停留电缆的现场测试。结果表明,计算的频率可以与测量的频率达成良好的协议

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