Strain monitoring for horsetail falls and sylvan bridges

SPR 304-081Fiber optic sensors were installed on two reinforced concrete bridges that had been strengthened with fiber reinforced polymer composites. The primary objective for one of the bridges was to provide strain data to verify a computer model for the bridge developed under a separate project. A second objective was to evaluate the effect of fiber reinforced polymer composite reinforcement on bridge response. Unfortunately, usable strain data were not acquired prior to retrofit for either bridge to meet the second objective. This report summarizes the procedures used to install and monitor the sensors and the strain results after the composite retrofit. Work performed under contract SPR 304-081. 6 Figures, references, 4 appendices