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.

Triple Pendulum™ Isolator
Incorporates three pendulums in one isolator, optimizing the structure’s response for different earthquakes.
Single Pendulum™ Isolator
The original Friction Pendulum™ isolator. Consists of a single slider moving on a concave surface.
Tension Isolator
Can accommodate structure vertical loads that vary from compression to tension during seismic movements.
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