the high damping rubber is green and environmentally friendly;
No lead pollution of the high damping bearings ensures compliance with health and safety standards.
The high damping rubber bearing, a type of high damping bearing, is an effective seismic isolators for buildings. It is widely used in seismic isolation design and the seismic reinforcement and renovation of bridges, buildings, hydropower projects, and other civil structures.
Specifications (diameter, mm) | / | D400 | D500 | D600 | D700 | D800 | D900 | D1000 |
Shear modulus G | Mpa | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
Total height of bearing H | mm | 178 | 201 | 223 | 267 | 302 | 353 | 390 |
Total thickness of rubber layer Tr | mm | 74 | 93 | 111 | 129 | 147 | 166 | 184 |
First form factor S1 | / | ≥15 | ≥15 | ≥15 | ≥15 | ≥15 | ≥15 | ≥15 |
Second form factor S2 | / | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 |
Vertical compression stiffness Kv | kN/mm | 1350 | 1750 | 1950 | 2450 | 2950 | 3650 | 4450 |
Horizontal equivalent stiffness (Shear strain 100%) Keq | kN/mm | 0.98 | 1.22 | 1.49 | 1.73 | 1.98 | 2.24 | 2.48 |
Yield force Q | kN | 23 | 36 | 53 | 73 | 95 | 120 | 149 |
Stiffness after yield Kd | kN/mm | 0.68 | 0.84 | 1.02 | 1.19 | 1.36 | 1.53 | 1.7 |
Stiffness before yield Ki | kN/mm | 8.1 | 10.1 | 12.2 | 14.3 | 16.3 | 18.3 | 20.4 |
Equivalent damping ratio heq | / | 18.00% | 18.00% | 18.00% | 18.00% | 18.00% | 18.00% | 18.00% |