摘要
采取与土木工程施工特点相适应的操作工艺与保护方法,将光纤Bragg光栅传感器埋入钢筋混凝土结构中,分别在实验室和实际工程施工现场对混凝土内部的应变进行了测量。实验中光纤Bragg光栅传感性能良好,能够监测混凝土内部应变状态,显示出成活率高、绝对值测量、寿命长等优势,为建立基于光纤传感器的结构健康监测系统奠定了基础。
Fiber Bragg grating(FBG) strain sensors are calibrated and embedded into the reinforced concrete beams. Operating techniques and protective methods suitable for civil engineering structures are presented. With FBG sensors, internal strains of the reinforced concrete are determined in lab and on construction site. FBG sensors are advantageous with respect to the absolute value measurement and long service life over the conventional electrical strain gauge in experiments. The results indicate that it is possible to build a structural health monitoring system based on fiber optic sensors.
出处
《力学与实践》
CSCD
北大核心
2003年第4期35-38,共4页
Mechanics in Engineering
基金
黑龙江省交通厅科研基金
哈尔滨工业大学跨学科交叉研究基金
