光纤Bragg光栅测力环在系杆拱桥中的应用  

Application of FBG Load Cell on Bowstring Arch Bridge

作　　者：姜德生[1] 郝义昶[1] 刘胜春[1] 

机构地区：[1]武汉理工大学光纤传感技术中心,湖北武汉430070

出　　处：《仪表技术与传感器》2006年第2期43-44,共2页Instrument Technique and Sensor

基　　金：湖北省重大攻关项目(AA101A05)

摘　　要：针对系杆拱桥索力长期监测的特点,研制了光纤Bragg光栅锚索测力环。光纤光栅测力环具有测试精度高、测试简单方便、长期可靠性好和抗干扰能力强等突出优点。介绍了光纤光栅测力传感器的结构特点和研究过程,及其在系杆拱桥换索施工中的成功应用。应用结果表明,光纤光栅测力传感器可有效监测钢管混凝土系杆的受力状况。Based on the characteristic of bowstring of arch Bridge monitoring,researched the FBG load cell.Fiber grating strain sensors have prominent advantages of high precision, simple and convenient testing, good long - term reliability, as well as powerful anti - jamming capability. Mainly concerned with the structural characteristic and research processing of fiber grating strain sensors. And successful applications of strain sensors in the bowstring arch bridge and tie bar cable replacement in the construction. The applied results indicate that fiber gating strain sensors are effectively able to monitor the tension status about reinforced concrete bowstring arch bridge.

关 键 词：光纤BRAGG光栅 系杆 应变 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]