应用于桥梁健康监测中光测法与电测法的试验对比与探讨

Comparison and Discussion on the Application of Light Test and Electric Test in Health Monitoring of Bridge

为比较光测法与电测法两者在桥梁健康监测方面优劣,笔者对某斜拉桥进行加载试验,运用光纤光栅传感器与电阻应变计对桥梁同步监测。经过对比与探讨,得出光纤光栅传感器凭借数据准确性、稳定性以及使用寿命等方面更适用于桥梁健康监测。

In order to compare the advantages and disadvantages of optical and electrical methods in bridge health monitoring,the author carried out loading test on a cable-stayed bridge,and used fiber Bragg grating sensor and resistance strain gauge to monitor the bridge synchronously.After comparison and discussion,it is concluded that FBG sensor is more suitable for bridge health monitoring with data accuracy,stability and service life.