Construction Materials | Seismic Isolator for Buildings
Categories of Bridgestone Seismic Isolation Systems
| H-RB (High Damping Rubber Bearing) | |
|---|---|
| MLIT approval number for Seismic products MVBR-0285(E0.4) MVBR-0415(X0.6R) |
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| Features | Diagram |
| H-RB is a specially formulated rubber bearing with a high damping function. External dampers are not necessary. Compact, easy to install and economical. H-RB can be effective in not only for the building itself but also for internal equipment because of its performance. We have 2 kind of different elasticity products, E0.4 and X0.6R, and our products can apply light face pressures. |
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| N-RB (Natural Rubber Bearing) | |
|---|---|
| MLIT approval number for Seismic products MVBR-0295 | |
| Features | Diagram |
| N-RB is made from natural rubber, providing linear spring stiffness with very low damping. By combining the N-RB with an external damper, a wide range of performance requirements can be satisfied. We can offer 4 different elasticity products, G0.30, G0.35, G0.40, G0.45. By redesigning the rubber material, isolator structure and shape, the isolator can withstand high face pressures. |
Standard Size Specification (1.5MB) |
| E-SB(Elastic Sliding Bearing) | |
|---|---|
| MLIT approval number for Seismic products MVBR-0349(SL series) MVBR-0308(SP series, Type:G0.4) |
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| Features | Diagram |
| E-SB consists of 2 pieces: 1) a natural rubber bearing bonded with PTFE(Teflon) material and 2) a stainless steel slide plate. Small displacements are absorbed by the rubber itself, while large displacements cause the rubber bearing to slide on the plate. The E-SB is primarily used in lightly loaded areas, such as below staircases. The E-SB, H-RB & N-RB can also be used in combination. |
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- -“MLIT” in this chart stands for Ministry of Land, Infrastructure and Transport Japan.
- -Approval number in this chart is the one at December 2006. If you need to know current approval number, please feel free to contact us.