1. Function
Transfer load, reduce friction, and allow the structure to rotate or displace when subjected to force.
2. Application scenarios
1) Isolation bearings: bridges in high-intensity earthquake zones; important lifeline projects; lateral isolation of large-span bridges, etc.
2) Pot bearings: large-span continuous beam bridges, cable-stayed bridges; high-speed railway bridges; isolation foundations of large buildings, etc.
3) Spherical bearings: curved bridges, ramp bridges; large-span spatial structures; high-pier bridges, etc.
4) Rubber bearings: small and medium-span simply supported beam bridges; temporary projects or prefabricated structures; bridges in low-intensity areas (with other seismic measures), etc.
In actual projects, they are often used in combination, for example: isolation bearings + spherical bearings are used for curved bridges in earthquake zones, taking into account seismic resistance and multi-directional deformation capabilities.
