The normal service life of bridge rubber bearings is 60 years, and they also have to bear the vibration and seismic disaster loads during the installed period . The bridge bearing is closely bonded by rubber and cold-rolled steel plate, used to bear the point weight of highway bridges.

Bridge Spherical bearings tests, the vertical loading capacity testing through experiments

The installation of spherical bearing on prefabricated simply supported is anchored using bolts and sleeves. The sleeves are spot welded and fixed to the connecting steel plates, and is embedded at the bottom of the beam.

As an effective passive control method, base-isolated structure can significantly reduce the seismic response of the structure by adjusting the natural vibration period of the original structure system to keep it away from the predominant period of the earthquake ground motion.