光纤传感网络在桥梁施工应力监测中的应用

随着桥梁结构施工技术发展和桥跨的不断增长,为确保其施工的质量和安全性,在桥梁建设中对其应力进行实时的监测显得尤为重要.而传统的传感器在恶劣的施工环境中成活率极低,受环境影响较大,具有精度低等缺点.在新建桥梁的应力监测中采用光纤光栅传感技术,然后在有限元模拟的基础上,监测数据与普通传感器所测数据进行比较.结果表明:光纤光栅传感器在桥梁应力监测中具有可行性,为以后桥梁的应力应变监测提供了新方法.

Application of Optical Fiber Sensing Network Stress Monitoring in Bridge Construction

With the development of bridge structure construction technology and the growing across the bridge,inorder to ensure the quality and safety of its construction,the real-time monitoring of the stress in the construction ofa bridge is very important. In the harsh construction environment,traditional sensor survival rate is extremely low,which are greatly influenced by the environment,and has low accuracy of shortcomings. The fiber bragg gratingsensing technology was used in the stress monitoring of a new bridge. On the basis of finite element simulation,themeasured data was compared with ordinary sensor measured data. Shows that fiber bragg grating sensors in feasibility,bridge stress monitoring for later provides a new method for stress and strain of the bridge.