ALIGNMENT RETAINERS FOR STEEL CHANNEL SLEEPERS ON RAILWAY BRIDGES

摘要

The present invention of alignment retainers is to provide lateral stability of the track on bridges with lateral restrainers taking reaction from the girder in lateral direction The track on railway bridges is laid on channel sleepers and the channel sleepers are fixed to the bridge girders by the bolts called hook bolts. These hook bolts will be holding the sleepers from both the sides vertically and prevent the sleepers from disturbance in lateral direction. Due to the dynamic action of trains the track on the bridges is subjected to frequent alignment disturbance. The present day arrangement is holding the track on bridges in lateral direction is by providing a bolt called hook bolt in the vertical direction which will be holding the track to girders. The present arrangement of holding the track with vertical friction grip between girder and hook bolt is in adequate. Now alignment retainers are designed to hold the track in lateral direction by taking reaction from inside the girder in lateral direction. As this arrangement is holding the track in lateral direction it will not allow any lateral disturbance to track and provide good retention of track alignment.