Wydzial Budownictwa Politechniki Opolskiej

Poland

Wydzial Budownictwa Politechniki Opolskiej

Poland
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Beben D.,Wydzial Budownictwa Politechniki Opolskiej | Mordak A.,Wydzial Budownictwa Politechniki Opolskiej | Anigacz W.,Wydzial Budownictwa Politechniki Opolskiej
Drogi i Mosty | Year: 2011

The paper presents the application of the GPR technique for determination of the parameters of bridge beams. The GPR method uses the principle of electromagnetic waves dispersion. The subject of this study is a three spans road viaduct located over the railway line. The main objective of experimental tests was to determine the geometric parameters of bridge beams and establish the localization of steel reinforcements. Conclusions drawn from the conducted tests can be helpful in the measurements using the GPR technique, especially for the reinforced concrete bridges.


The paper presents the selected results of experimental tests under service loads that were conducted on a railway culvert made from corrugated steel plates. The displacements of the railway culvert were measured using the microwave interferometric radar. Based on the measured displacements, the frequencies of culvert were determined using the FDD (Frequency Domain Decomposition) method. The dynamic loads were caused by the passages of various trains running on this railway line. Conclusions drawn from the conducted tests can be helpful in the measurements using the microwave interferometry method, with particular emphasis of small to medium culverts and bridges.

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