engleski

Combination of GPS and precise levelling in measurements of vertical bridge deformations

This paper presents the research of the possibilities in parallel application of two methods, terrestrial and satellite, in measuring vertical deformations. It is the matter of a modified precise levelling and kinematic GPS method. Test loads have caused deformations of the bridge over the river Sava near Orasje. By means of precise levelling, all measuring sites on the bridge have been observed, and by means of GPS the middle of the bridge has been observed as related to the reference point. The most interesting comparative results of theoretical and measured deformations have been presented, and the comparative movements of the middle of the bridge measured by means of precise levelling, i.e. GPS in thirty phases of loads.

bridge; deformation; kinematic GPS; measurement; precise levelling

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