Abstract
When a continuous welded rail(CWR) track is supported by bridge, additional axial stress and displacement are occurred by track-bridge interaction, and they have an effect on safety and serviceability of track. Domestic and foreign standards for track-bridge interaction offer analysis methods and limit values which are guiding the safety design, because the influence on interaction is difficult to be evaluated quantitatively. In this study, measurement system was constructed on the concrete a track supported by a bridge, and field monitoring has been carried out to evaluate the influence on track-bridge interaction by temperature changes. And track-bridge interaction responses under various temperatures were analyzed by comparing results of measurement and numerical analysis.
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