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The bridges take a significant part of entire route in Korea railway, because 70% of Korean territory is covered with mountains. For this reason, span enlargement of railway bridges is more advantageous to increase economic efficiency on the bridge design. However there are many limitations such as additional axial force of the rail, excessive displacement due to track-bridge interaction. In this study, track-bridge interaction analysis was conducted considering the sliding layer which was installed between the track and girder. From the numerical analysis results, the behavior of track-bridge interaction was investigated according to the installation method of sliding layer. Finally, a guideline for development of track-bridge structure system to reduce the track-bridge interaction was proposed.

A Guideline for Development of Track-Bridge Structural System with Sliding Layer to Reduce the Track-Bridge Interaction