FBG Strain Sensors for Creak Measurement Due to Hydration Heat in Massive Concrete
A massive concrete structure has a lot of micro-cracks due to the hydration heat.In general, conventional electric sensors have a certain limit in measuring cracks because of the noise.The durability is also badly influenced by corrosion.Recently, optical fiber sensors have demonstrated their superiority over conventional sensors and are able to solve these problems.Thus, in this work ,embedded Fiber Bragg Grating (FBG) sensors for measurement of cracks in massive concrete due to hydration heat are developed and investigated.The developed sensor has the potential to perform strain measurement under harsh conditions in the presence of electrical noise and electromagnetic interference.Particularly, these FBG strain sensors are easily installed and found to be durable for massive concrete structures such as dams, bridges, nuclear structures, etc.
Massive concrete FBG sensor Strain sensor Hydration heat Creak measurement
Seungjae Lee Geumsuk Lee Sudeok Shon Daejoong Moon
School of Architectural Engineering,Korea University of Technology & Education,1600 Chungjeolno,Byeo Research Ins.,FBGTech Co.Ltd.,1359 Gwanpyeong,Yuseong,Daejeon,305-509,South Korea Structural Engineering Dept.,EJtech Co.Ltd.,204-5 Gumi-dong,Buondang-gu,Seongnam-si,Gyeonggi-do,463-
国际会议
武汉
英文
329-332
2012-12-27（万方平台首次上网日期，不代表论文的发表时间）