Friction Pendulum™ Isolators
Friction Pendulum™ isolators use the characteristics of a pendulum to lengthen the natural period of the isolated structure so as to avoid the strongest earthquake forces. During an earthquake, the supported structure moves with small pendulum motions. Since earthquake induced displacements occur primarily in the bearings, lateral loads and shaking movements transmitted to the structure are greatly reduced.
Incorporates three pendulums in one isolator, optimizing the structure’s response for different earthquakes.
The original Friction Pendulum™ isolator. Consists of a single slider moving on a concave surface.