Compared to traditional sealing methods, such as welding or installing piston valves, it is easier to plug air bags with pipes.

After summarizing experience in designing, manufacturing, and using spherical bearings over the past decade. We have referred to the design method for spherical bearings specified in the European standard EN1337 and used finite element analysis to optimize the design.

The desining work of seismic isolators for building and bridge normally needed to be finished by professional institute or designing company. The designing process is from the start of analysis the construction structure and local geological seismic conditions,

The bridge bearings used for urban rail transit bridges should be equipped with necessary lateral limit structures to meet the requirements of safety and comfort during rapid train operation.