Study on Dynamic Characteristics of Structure Approaches by Train Moving Loads

This paper systematically analyzes the dynamic effects of structure approaches which are expected to have direct effects on train loads - according to the train`s acceleration as the area under consideration is located in a section where acceleration of high speed railway vehicles and the train`s operating speed happens. In addition, through an examination of the dynamic train loads, dynamic behavioral characteristics of embedded structures and structure approaches were analyzed and a numerical analysis has been carried out in order to evaluate the performance of track subgrade and the safety of the structure. As a result, we reach the conclusion that the dynamic effects by train loads is low, but somewhat high vertical acceleration occurs.