【摘要】 介绍光纤布拉格光栅传感器的测试原理以及混凝土结构中的埋入工艺。在上海旗忠网球中心双向预应力混凝土看台结构施工期间,将72个光纤光栅传感器埋设结构中,进行了为期8个月的现场施工监控。结果表明:光纤光栅传感器测试值和理论计算值吻合良好;光纤光栅传感器性能稳定、精度高、抗电磁干扰能力强、存活率高,很好地实现了施工长期监控;上海旗忠网球中心看台结构在施工全过程中受力性能良好。更多还原

【Abstract】 Principle and embedded method of Fiber Bragg Grating(FBG) sensors in concrete structures are illustrated in brief.72 FBG sensors are embedded in the bi-direction prestressed concrete structure of Shanghai Qizhong Tennis Center for 8-month construction monitoring.The monitoring results show that the measuring and theoretical results are in good agreement with each other,and FBG sensors put up good performance in stabilization,precision,resistance EMI and ruggedization. The results also show that the structure has a good mechanical performance in the whole process of construction.更多还原