Abstract
Recently, precast slab tracks have been used widely in railway applications, especially in conventional urban railway lines. These types of tracks are rapidly constructed and limit interruptions to train operation. However, the problems of dynamic stability when the trains run on the discontinuous type of tracks must be seriously considered. This paper focuses on analyzing the train-track interaction in two types of tracks under the dynamic load by using the numerical analysis program (APATSI) to evaluate the structural response as well as the running safety to precisely understand the load transfer efficiency of precast slab track systems.
Highlights
IntroductionThe ballasted track system with concrete sleeper is the major type that is generally used in conventional lines
With the development of technology, concrete slab track systems are an alternative method that can solve these problems of the ballasted track with their excellent durability under the trainloads created by the high speed or the increasing of the axle load [4]
With the above specifications of train and track structure, the analysis was calculated by using the finite element program All-Purpose Analysis of Train Structure Interaction (APATSI), which was developed by the Korea Railroad Research Institute
Summary
The ballasted track system with concrete sleeper is the major type that is generally used in conventional lines. The maintenance cost of the ballasted track is mentioned as a limitation when operating this system. It is necessary to improve the track structure as an innovative solution has been offered. With the development of technology, concrete slab track systems are an alternative method that can solve these problems of the ballasted track with their excellent durability under the trainloads created by the high speed or the increasing of the axle load [4]. The initial construction cost of concrete track structure is
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