FBG传感器在PHC管桩竖向静载试验中的应用  

Application of FBG sensors in vertical static load test on PHC pipe piles

作　　者：辛建[1] 刘志强[1,2] 韩高彬[3] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃兰州730000 [3]中国水电基础局有限公司科研设计院,天津301700

出　　处：《传感器与微系统》2014年第8期154-157,共4页Transducer and Microsystem Technologies

摘　　要：根据目前FBG传感器在混凝土管桩中的应用现状,介绍了FBG传感器的数据处理原理,针对试验中最易发生破坏的环节,提出了一种可靠的FBG传感器埋设工艺,结合现场PHC管桩竖向静载试验,将试验数据与传统电阻应变片测试技术相比。试验结果表明:FBG传感器存活率高达97.06%,测试数据可靠,测试精度满足工程要求,FBG传感器完全可以应用到PHC管桩竖向静载试验中。According to current application status of FBG sensors in concrete pipe piles,introduce data processing principle of FBG sensors, aiming at most prone to damage part in test, a reliable FBG sensors embedded technology is proposed, combined with field PHC pipe pile vertical static load test, experimental datas are compared with the traditional resistive strain gauge datas. Experimental results show that survival rate of FBG sensors is as high as 97.06 %, test datas are reliable and test precision can satisfy requirement of engineering, FBG sensors can be completely applied to vertical static load tests on PHC pipe piles.

关 键 词：FBG传感器 PHC管桩 竖向静载试验 埋设工艺 

分 类 号：U655.55[交通运输工程—港口、海岸及近海工程]