Abstract

In Korea, ballastless track bridges have been built since the early 1900s and are one of the most popular railway bridges. However, because the self-weight of the upper structure is relatively lightweight compared to the train, severe noise and vibration occur, and it is difficult to increase the train speed, owing to a 20-50 m long rail being connected by the seam plate. To overcome these problems, welded rails for ballastless track bridges are urgently required. This study preliminarily investigates the installation of continuous welded rails (CWR) for ballastless tracks in order to analyze the effects of and issues due to the track-bridge interaction in this configuration and determine solutions. Keywords: Ballastless Track, Continuous Welded Rail, Additional Axial Stress

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