Vibration Characteristics of New Wide Sleepers on Asphalt Trackbed System

Many researches are being conducted in the area of asphalt track in Korea. Previous studies characterized the vibration characteristics of direct fixation track. However, the sleeper of currently developing direct fixation track is constructed in a "shear key" system, which is different from previous style. Therefore, the vibration characteristics attributed from the moving load is expected to be different from previous work. Therefore, the vibration characteristics of direct fixation track according to the moving load was investigated in this study using a 3-D finite element analysis.