Monitoring of Bridge Structure using Fiber Brags Grating Sensors

Recently structural monitoring using fiber optic sensors became popular, but the fiber sensors are very difficult to apply to the real structure due to thin and fragile shape of the fiber. In this research, we developed the fiber sensor packages easy to attach or fasten to the structures and apply to the real bridge structure for measuring the strains and shape changes. The applied fiber optics sensors show the behavior of the bridge girders which have several cracks in the structure.