Isolating Building Contents from Earthquake Induced Floor Motions

A simple and effective system has been developed and is in use to isolate and substantially reduce both earthquake induced large accelerations and displacements simultaneously. The base isolation system protects building contents susceptible to damage by earthquake induced motions. The single isolation unit has been extensively tested during shaketable test programs. The isolation system operates at about critical damping and can accommodate a large variety of random dynamic motions generated by earthquakes. The system is flexible and can be customized for different configurations and specific functional performances.