基于光纤传感技术的桥梁拉索健康监测技术试验研究

Health Monitoring of Bridge Stayed Cable Based on Fiber Sensing Technology

提出了一种基于FBG光纤光栅传感器和光纤数据传输技术的拉索健康监测技术,通过拉索制作时预先植入光纤传感器,实现拉索使用过程中索力测量的准确化,使拉索的实时健康监测成为可能。通过实验室技术试验和实桥应用试验,验证了所介绍技术的可行性和可靠性。

This paper proposes a method of stayed cable health monitoring technique based on FBG (fiber bragg grating) sensor and fiber data transmission technology. By implanting FBG sensor in advance when the stayed cable is made in factory, this skill realizes the measurement accuracy of cable force in the using process of stayed cable and makes the real-time health monitoring of stayed cable possible. The laboratory technical experience and the practical bridge application test verify the feasibility and reliability of the introduced technology.