High Precision Dynamic Gps System for On-line Structural Monitoring
نویسندگان
چکیده
A structural monitoring project in Singapore is described in which an RTK-GPS system comprising a pair of Leica GPS receivers installed on the Republic Plaza Building (at 280m, the maximum height of any Singaporean building) will be used to generate time series of antenna positions. This system will contribute to a project of monitoring that commenced in 1995 with the installation of two pairs of accelerometers and two UVW anemometers. The GPS results will complement and corroborate the acceleration and wind velocity data to provide a complete picture of building displacement across the full spectrum of loading frequencies, allowing for direct estimation of lateral loads. The aim of the project is to characterise the building loading and dynamic response during strong winds and remote earthquakes, in order to aid local design code development. The GPS system design and installation is described, as well as the technique for on-line data analysis that is under development.
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