Principle of damping and isolation of Bailey Bridge

Bailey bridge has the characteristics of large structural steel, small deformation, is widely used in Our country, so what is the principle of Bailey bridge damping isolation?

The reduction and isolation of Bailey bridge is to reduce the response of earthquake acceleration to prolong the natural vibration period of the structure and reduce the structure subjected to earthquake load. For the bridge structure, the use of rubber bearings, ptfe bearings and other sliding bearings that is tile to increase the flexibility of the structure, the purpose of the structure is to extend the natural cycle.

Although the period of the structure will be prolonged, the relative displacement between the beam and the pier will also increase. In order to reduce the relative displacement of beam and pier increased by the extension of natural vibration period, the method of increasing structural damping can be used. Increase the damping of the structure to minimize the displacement caused by the earthquake.