교량상 콘크리트궤도/자갈궤도 접속부 설계

The transition zone in the railway means the part of changing from bridge to earthwork, tunnel to earthwork or ballast track to concrete track. However, the reinforcing plan on the transition zone considering the bridge behavior influence besides the method of loosening the change of current track support stiffness shall be established because the creeping of sleeper and unstabilization of ballast can be taken place additionally due to the behavior of the bridge when there is a range of changing the track type at the bridge deck expansion joint differently with the usual transition zone. Accordingly, this study suggested how to reduce the track support stiffness on the transition zone on the bridge and how to inhibit the creeping level of sleeper in maximum to avoid the above negative phenomenon.