The application of the Fourier and wavelet transform to altitude differences of temporal series, set out by GPS, acopled a shaker at USP bases.
Abstract
The dynamic monitoring of road bridges through the determination of space displacements is one of the current areas of interest of geodesy applied to the engineering of structures. The technology of satellite positioning is one of the
available tools for this purpose and in this article it is partially evaluated. The GPS can contribute to the dynamic monitoring of structures if they have enough spatial displacement to be analysed by means this technology. In recent years, it have
observed applications in great stayed bridges in Asia, in Europe and in North America. Some experiments had been carried out through the Base of Calibration of Geodetic Instruments of the USP using the GPS technology and modal analysis. In
the present study, the application of this technology through the simulation with a shaker was analysed. From the application of the kinematic relative method, the three-dimensional displacements were obtained and the frequency of the first mode of table vibration, where the shaker was installed in one of the pillars of the baseline. The analysis was been carried out through the application of the Fourier and Wavelet transform.
available tools for this purpose and in this article it is partially evaluated. The GPS can contribute to the dynamic monitoring of structures if they have enough spatial displacement to be analysed by means this technology. In recent years, it have
observed applications in great stayed bridges in Asia, in Europe and in North America. Some experiments had been carried out through the Base of Calibration of Geodetic Instruments of the USP using the GPS technology and modal analysis. In
the present study, the application of this technology through the simulation with a shaker was analysed. From the application of the kinematic relative method, the three-dimensional displacements were obtained and the frequency of the first mode of table vibration, where the shaker was installed in one of the pillars of the baseline. The analysis was been carried out through the application of the Fourier and Wavelet transform.
