Aishwarya Bhat
Independent Researcher
India
Abstract
Structural Health Monitoring (SHM) is crucial for ensuring the safety and longevity of civil infrastructure such as bridges. Among various sensing technologies, Fiber Bragg Grating (FBG) sensors have gained prominence due to their high sensitivity, immunity to electromagnetic interference, and multiplexing capability. This manuscript presents an in-depth review and experimental investigation of bridge health monitoring using FBG sensors. It covers sensor principles, installation methods, signal processing techniques, and practical case studies of FBG deployment on bridges for strain, temperature, and vibration monitoring. The methodology includes sensor placement optimization, data acquisition system design, and analytical modeling for damage detection. Results from laboratory and field tests demonstrate the effectiveness of FBG sensors in detecting structural anomalies, load distribution, and environmental effects. This study concludes that FBG-based SHM provides a reliable, scalable, and cost-effective solution for real-time monitoring of bridge integrity, significantly enhancing preventive maintenance strategies.
Keywords
Structural Health Monitoring, Fiber Bragg Grating, Bridge Monitoring, Strain Sensing, Civil Infrastructure, Damage Detection
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