GNSS FOR STRUCTURAL DEFORMATION AND DEFLECTION MONITORING: IMPLEMENTATION AND DATA ANALYSIS

摘要: GNSS, particularly GPS has been used for monitoring structural deformation and deflection more than a decade. While it is this purpose, demonstrated its feasibility obvious advantages over other traditional systems. However, there an apparent shortage of applicable specifications standards as well reliable data processing techniques. The common interface between surveyors carrying out field collection their engineering counterparts who are responsible further dynamic interpretation far beyond mature. Structural engineers now still cannot fully understand the potentials confidently use major acquisition tool. Based on ten years experience in using sensors such triaxial accelerometers ground-based pseudo-satellites UK, authors present feasible system relevant techniques which can be employed to monitor analyse performance operational suspension bridge with main spans varying from several tens metres one thousand metres. Detailed procedures collection, analysis visualisation, generation analytical model, model updating prediction condition also recommended. Data real - life practice analysed paper address different issues raised by authors.