Inhaltszusammenfassung

As infrastructure ages, monitoring is becoming increasingly important to ensure the safe operation of civil structures. Modern geodetic sensors can provide static and dynamic displacement data of these structures up to several hundred Hertz. As the measurements are made remotely, no direct access to the structure is required. While the precision of static geodetic measurements has been extensively studied, dynamic measurements have not been sufficiently investigated. To overcome this limi...As infrastructure ages, monitoring is becoming increasingly important to ensure the safe operation of civil structures. Modern geodetic sensors can provide static and dynamic displacement data of these structures up to several hundred Hertz. As the measurements are made remotely, no direct access to the structure is required. While the precision of static geodetic measurements has been extensively studied, dynamic measurements have not been sufficiently investigated. To overcome this limitation, the dynamic capabilities of Robotic Total Stations (RTS) with respect to the precision of angle and distance measurements are investigated. The measurement systems were used in a large-scale load test on an Austrian motorway bridge. Several sensor systems such as RTS and Profile Laser Scanners (PLS) were used to monitor the structure and compare the capabilities of the sensors themselves. Controlled loading tests were carried out where two trucks, each weighing over 50 tonnes, passed the structure being monitored under controlled conditions. Additionally, static load tests were carried out. By comparing the two types of tests, it is possible to highlight the potential of dynamic tests. They offer advantages such as shorter closure times, which can increase the acceptance of load tests.» weiterlesen» einklappen

Autoren

Klassifikation

DFG Fachgebiet:
3.43-02 - Geodäsie, Photogrammetrie, Fernerkundung, Geoinformatik, Kartographie

DDC Sachgruppe:
Ingenieurwissenschaften