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Erschienen in:
2021 | OriginalPaper | Buchkapitel
Geodetic Monitoring of Bridge Structures in Operation
verfasst von : Ladislav Bárta, Jiří Bureš, Otakar Švábenský
Erschienen in: Contributions to International Conferences on Engineering Surveying
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Abstract
This paper deals with the monitoring of vertical displacements and deformation of large concrete bridge objects. The subject of geodetic monitoring was the substructure and bearing structure of two parallel bridges. The length of each bridge is 700 m. The substructure consists of 15 supports. The heights of the pillars are up to 30 m. Six stages of measurements covering 6 years were processed. The measurement technology was designed with respect to the specific influence of the external environment and traffic on the measuring system itself when measuring the points of the reference system, the points at the heels of the bridge pillars, the points at the supports and the point at the ledges of the load-bearing. The aim is to analyze vertical displacements and deformation of the monitored bridge object in relation to the estimation of temperature states of the object in individual phases of measurement.