Comparative Study on Numerical Simulation and Monitoring Data of Bridge Construction Monitoring Phase

Bridge health monitoring is not only a new technology for traditional bridge detection and structural assessment, but also given the significance of structural monitoring and evaluation, design verification and research and development. The basic data acquisition method is to use the high-precision non-destructive sensing technology in the field to analyze the structural system characteristics including structural response, and achieve the functions of structural monitoring and evaluation, design verification and research and development. However, the sensor faces the challenge of being calibrated as the use time is lengthened during use. It is especially difficult to evaluate the uncertainty in the field calibration process. This paper analyzes the bridge in the construction stage by numerical simulation combined with statistical algorithm analysis, and adopts two methods to reduce the error of numerical simulation. It is fitted with the actual monitoring data, and this method is used to compare and analyze the field monitoring data. It provides theoretical support for the uncertainty assessment of the field calibration process.