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.

A sound barrier is a facility inserted between the sound source and receiver, which causes a significant additional attenuation of sound wave propagation,