Q1892Seismic base isolation places flexible bearings or sliding systems between a structure and its foundation, reducing the ground motion transmitted upward.
A conventional building tends to inherit every rapid shift of the ground beneath it. Isolators lengthen the structure's response and permit controlled movement at the base, so upper floors experience gentler accelerations and sensitive contents have a better chance of surviving. The method requires room to travel: seismic gaps, flexible utility connections and carefully designed bearings are part of the safety system. Much of the ground's rapid motion is accommodated below instead of being passed into the occupied structure.





