Research on Calibration Model of Bridge Health Monitoring Based on Vibrating Wire Strain Sensor

Abstract

Abstract Bridge structure quality inspection and health monitoring are important research contents of the transportation industry. This study uses the national standard 6061 aluminum alloy cylindrical bar, and vibrating the vibrating wire strain sensor used in the mainstream of the two markets in a symmetrical position. This study used a superimposed force standard machine to perform a 0-100KN compression test on a bar. We performed data regression analysis on the data of the two sensors collected and obtained a new model. By comparing the output values with the traced force standard machine, we conclude that the trend of the model is consistent with the trend of the force standard machine. This study provides a theoretical basis for the rapid calibration detection of bridges before installation by strain monitoring sensors.