Measuring Deflections of a Short-Span Railway Bridge Using a Robotic Total Station
- 1 February 2013
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Bridge Engineering
- Vol. 18 (2), 182-185
- https://doi.org/10.1061/(asce)be.1943-5592.0000334
Abstract
A robotic total station (RTS) [or robotic theodolite or theodolite positioning system (TPS)] was used for the first time to measure the deflections of a short-span bridge in response to passing trains. The RTS measurements aimed to a reflector which was set on one of the midspans of the historical Gorgopotamos Bridge in Greece permitted to identify the measurement noise (apparent displacements) up to ±1.3 mm when no trains were passing, and deflections with peaks of 2.5–6 mm during intervals when small or larger trains were passing. These results confirm previous experiments and indicate that, under certain conditions (mostly favorable atmospheric conditions), an RTS can be used for monitoring dynamic displacements of relatively stiff bridges, and as a useful tool for structural health monitoring.Keywords
This publication has 11 references indexed in Scilit:
- A displacement-based seismic design procedure for concrete bridges having deck integral with the piersBulletin of Earthquake Engineering, 2010
- Ambient vibration re-testing and operational modal analysis of the Humber BridgeEngineering Structures, 2010
- The application of time series analysis to describe the dynamic movements of suspension bridgesNonlinear Analysis: Real World Applications, 2009
- Potential of Global Positioning System (GPS) to measure frequencies of oscillations of engineering structuresJournal of Sound and Vibration, 2008
- Errors Introduced by Fluctuations in the Sampling Rate of Automatically Recording Instruments: Experimental and Theoretical ApproachJournal of Surveying Engineering, 2008
- Experimental Assessment of the Accuracy of GPS and RTS for the Determination of the Parameters of Oscillation of Major StructuresComputer-Aided Civil and Infrastructure Engineering, 2008
- Measurement of deflections and of oscillation frequencies of engineering structures using Robotic Theodolites (RTS)Engineering Structures, 2007
- Detecting bridge dynamics with GPS and triaxial accelerometersEngineering Structures, 2007
- Evaluation of dynamic response and local soil effects of the Evripos cable-stayed bridge using multi-sensor monitoring systemsEngineering Geology, 2005
- Integrating a Global Positioning System and Accelerometers to Monitor the Deflection of BridgesJournal of Surveying Engineering, 2004