Self-reset after earthquake.
The vibration period has nothing to do with the carried mass.
As a common type of seismic isolators, the friction pendulum system is mainly used in the design of friction pendulum bearing isolators and the seismic reinforcement and renovation of buildings, bridges, and other civil structures.
Support specification | Vertical bearing capacity | Support height | Vertical compression stiffness | Friction coefficient (slow) 0.02 | Friction coefficient (fast) 0.05 | ||
Stiffness before yield | Equivalent stiffness | Stiffness before yield | Equivalent stiffness | ||||
FPS II-Vertical bearing capacity (kN)- | Hb | Kv | Kp | Keff | Kp | Keff | |
Ultimate displacement (mm)-Swing period (s) | kN | mm | kN/mm | N/mm | N/mm | N/mm | N/mm |
FPS II-1000-250-3.81 | 1000 | 105 | 667 | 8000 | 566 | 20000 | 998 |
FPS II-2000-250-3.81 | 2000 | 125 | 1333 | 16000 | 1132 | 40000 | 1996 |
FPS II-3000-250-3.81 | 3000 | 140 | 2000 | 24000 | 1697 | 60000 | 2993 |
FPS II-4000-250-3.81 | 4000 | 155 | 2667 | 32000 | 2263 | 80000 | 3991 |
FPS II-5000-250-3.81 | 5000 | 170 | 3333 | 40000 | 2829 | 100000 | 4989 |
FPS II-6000-250-3.81 | 6000 | 185 | 4000 | 48000 | 3395 | 120000 | 5987 |
FPS II-7000-250-3.81 | 7000 | 200 | 4667 | 56000 | 3960 | 140000 | 6984 |