Bridge of dalianbei structural health monitoring based on gps technology

摘要

This paper first using GPS acts dynamic real-time monitoring on bridge of DalianBei, Then using Matlab Signal Processing Toolbox, designed a nine-order Butterworth belt pass filter, filtering to the curve of the vibration of the structure at the way. After this, acting spectral analysis by the FFT (Fast Fourier Transform), getting the natural frequency of the bridge structure, and comparing with Ansys finite element numerical solutions. Finally the GPS sensor method and the traditional method of acceleration sensor method were compared.