Unlike road bridges, railway bridges are exposed to longer periods of dynamic loads andhigher level of impact forces. Performance of railway bridges depend on many factors like loadingpatterns and their effects, allowable limits on impact, vibration, thermal stress and expansion of rail track,load carrying capacity, fatigue etc. Recently, Structural Health Monitoring (SHM) systems emerged as auseful tool for tracking the performance parameters through a series of sensors installed on them. Thedata from such sensing systems provide essential information on the health and performance of astructure on a regular basis and provide early warning systems in case of unacceptable degradation ofperformance. This article presents a state of the art review of literature on the performance monitoring ofrailway bridges identifying the key aspects of structural health monitoring in those structures, bestpractices in selection and installation of sensors and accessories, and interpretation of sensing data.
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