Seitenhafenbridge (case study)
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The monitoring system was included in the tender for the bridge. The tender design was prepared including specifications of sensors. Detail design was already considering the monitoring equipment. The goald was the verification of static calculation or input parameter for further investigations: Comparison of design assumptions with real structure. Calibration of finite element models to real structural behavior. Documentation of construction period or specific loading conditions.
The monitoring equipment consits of earth pressure sensors, laser sensors, passive reflecting units, inclinations sensors, hydraulic levelling system, and temperature sensors. The measurement task was to investigate the following: structural temperature, investigation of earth pressure (flexible abutment), alternation of length, vertical deflection of selected locations, observation of changes in inclination of selected locations, data storage & transmission, and regular reporting with regard to design assumptions. The monitoring system is working since start for operation in 2011. Reporting and maintenance is carried out in regular intervals by the client. The system has shown that the structure behaves as assumed. Monitoring improves understanding and may influence future design.
This case study was contributed by Lisa Ptacek of Universität für Bodenkultur Wien. Last edited by technical staff.