What is the effect of using high damping rubber bearings for seismic isolation of the buildings

Isolation rubber bearings not only have all the performance of plate bearings, but also have good isolation performance, which can effectively reduce the damage caused by earthquakes to bridges. High damping rubber bearings is a type of seismic isolation rubber bearing, which is made of high damping rubber material and can achieve a damping ratio of 10% to 16%. Its shape and structure are the same as natural rubber bearings, but its rubber material has high viscosity, can absorb energy on its own, has great ductility, can extend the natural vibration period of the structure during earthquakes, reduce seismic forces, and use its energy dissipation characteristics to exert seismic isolation effect, achieving the performance of lead core laminated rubber bearings.

Using high damping composite rubber material instead of lead core, adjusting the proportion of filling material to change the total damping, making it have strong energy dissipation capacity, and achieving the effect of seismic isolation. High damping rubber bearings have stable performance, strong energy dissipation and ductility. High damping rubber bearings have a higher equivalent viscous damping, which means they have higher energy dissipation and significant seismic isolation effects. They can effectively control the seismic response of isolated structures. Due to the integration of functions, the volume is smaller than that of lead core supports, which can save space and facilitate construction. The price is also cheaper than that of lead core laminated rubber supports.

In terms of vertical bearing capacity, stable and reliable vertical bearing capacity is provided by reinforcing steel plates to ensure the safety and reliability of daily use of buildings.

In terms of horizontal force, natural rubber has high strength and reliable adhesion with steel plates. When subjected to daily vibrations, wind loads, and huge seismic waves during earthquakes, it ensures that buildings will not experience functional failure due to sudden internal damage.