Home > Products > Seismic isolators (Base isolators) > Trench Friction Pendulum System (TFPS) > Properties

Reinforced Buckling Restrained Brace
Reinforced Added Damping and Stiffness (X-RADAS Damper)
All Direction Damper (ADD)
(Displacement+Velocity Dependent Device)
EPS Damping Wall
Multiple Friction Pendulum System
Trench Friction Pendulum System
Ball Pendulum System (BPS)
Lead Rubber Bearing (LRB)
ARB Adaptive Rubber Bearing
Trench Friction Pendulum System (TFPS)
01. The isolation period of the TFPS isolated structure along two perpendicular directions can be designed differently.
02. TFPS is suitable not only as a base isolator for the heavy full-scale
structures (thousands tons of axial load), but also for equipments in high-tech facilities, hospitals, museums, historical buildings etc.
03. The isolation period is dependent only on the radius of curvature of the concave surface. The isolation period of 3~5sec is easy to achieve for a TFPS isolated structure; however, it could be extremely difficult to achieve for a base isolated structure with LRB and HDRB.
04. The Teflon-composite with low friction coefficient coated on the sliding surface of the MFPS base isolator possesses a good durability under thousands cycles of reversal loading. The maximum friction coefficient at a high velocity is always less than 0.12.
05. TFPS has an excellent earthquake-proof efficiency whether it is subjected to near fault earthquakes, strong ground motions at soft soil-deposit sites or ground motions at basins. (The displacements response of the LRB or HDRB could be remarkable in these conditions)
06. The fireproofing capability of the TFPS base isolator is the same as that of the columns, beams, panels and floors of a structure.