Long-term monitoring system is becoming the center of interest in a field of diagnosis in building
structures. Existing measuring systems had many problems such as measuring data is not the absolute value but the relative, and the durability performance of system itself is not enough to use it in building site. FBG optical sensor has many merits to overcome the existing sensor's demerits. In the study, FBG optical sensors encased in concrete were tested and analyzed to evaluate its measurement performance for applying it as a long-term load and displacement monitoring system in high-rise buildings.

• 홍건호(호서대학교 건축공학과 교수, 공학박사) | Hong, Geon Ho
• 조원대(호서대학교 건축공학과 석사과정) | Jo, Won Dae