A novel durable intelligent fiber reinforced polymer anchor with embedded optical fiber Bragg grating sensors  

作　　者：HUANG MingHua ZHOU Zhi YUE Shuai HE JianPing OU JinPing 

机构地区：[1]School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China [2]Faculty oflnfrastructure Engineering,Dalian University of Technology,Dalian 116024,China

出　　处：《Science China(Technological Sciences)》2012年第5期1455-1462,共8页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 50978079);the National Scientific Support Project (Grant No. 2011BAK02B01)

摘　　要：Anchors are the key members of the geotechnical anchorage engineering, it is urgent to monitor their behavior in service for preventing the potential risks. This paper proposes a novel durable intelligent fiber reinforced polymer （FRP） anchor to understand the behavior of the anchor in the field application. Series of optical fiber Bragg grating （FBG） sensors were embedded into the central axis along the anchor to sense itself axial strain variations. An evolution model of axial strain was also developed to evaluate the behavior along the anchor. A demonstration test was carried out to test its self-sensing properties in the laboratory. The experimental results indicated that the embedded FBG sensors monitored the behavior, e.g. axial strairl/interfacial damage evolutions along the anchor and displacement/applied load at the pulling end effectively, without influence from the interfacial compression and slip effects.

关 键 词：ANCHOR fiber reinforced polymer optical fiber Bragg grating evolution model structural health monitoring 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置] U418.52[自动化与计算机技术—控制科学与工程]