경량콘크리트를 이용한 구조물 접속부 적용성에 관한 연구

초록

The structure transition zone means the changing area of stiffness of substructure which holds up bridge-earthwork, earthwork-tunnel, and ballasted track-concrete track. In the structure transition zone if stiffness changes, a sudden ununiform settlement is occurred by stiffness difference. In this time, unusual vibrations and impact loadings break out in train. The vibration of train makes train uncomportable. It affects stability of train, and the impact loading generates and accelerates damages of track and rail in the end. Therefore, recently, on the point of view of stability and maintenance of track and ground according to high-speed of train, the transition zone should be treated with careful. So, in this study, the method to minimize stiffness transformation of transition is investigated by using lightweight concrete approach block.