Analysis of lateral rigidity limit value for deck steel plate girder bridge on speed-raised line;

The lateral vibration of train and deck truss girder bridges is discussed while the train and the deck truss girder bridge are coupled together as one composite system.

In this paper,the influence of installation case of portal frame and sway bracing on the stiffness of steel-truss deck bridges is analysed fully both from static and dynamic characteristics respectively by three dimensional analysis of the structure,and the results achieved may provide reference for the relevant designs.