Research Article
Shaking Table Testing of a Scaled Nuclear Power Plant Structure with Base Isolation
Table 2
Rubber bearing performance parameters.
| Parameters | Unit | Value |
| Model | — | LRB220 | Size | mm | 220.00 | Design displacement | mm | 100.00 | Average pressure | MPa | 1.98 | Total rubber thickness | mm | 40.00 | Yield force | kN | 6.70 | Vertical stiffness | kN/m | 440 | Vertical bearing capacity | kN | 314 | Horizontal performance value at 100% | Equivalent stiffness | kN/m | 475 | Equivalent damping ratio | % | 12.3 | Horizontal performance value at 250% | Equivalent stiffness | kN/m | 345 | Equivalent damping ratio | % | 12.3 |
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