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High damping rubber bearing, also called HDR bearing pad, is one of seismic isolation bearing. It has excellent seismic isolation performance to effectively reduce the bridge damage caused by earthquake.
HDR bearing pad is composed of specialized designed rubber with high damping performance, sandwiched together with steel plate layer. When installing, the high damping rubber bearing is commonly used with top and bottom steel plate and connection accessories.
Working principle
During earthquake, the vibration from various directions will impact fixed base building and results in deformation and building or bridge damages. The high damping bearing pad is improved through high damping material, which the damping ratio can approach to 15% to 18%.
When the earthquake comes, the high damping rubber bearing will increase the horizontal displacement through rubber shear deformation and reduce friction coefficient. The large displacement can weaken the vibration from all direction and reduce the damage of building and bridges.
| Damping ratio | |
| HDR (I) bearing rubber | 15% |
| HDR (II) bearing rubber | 12% |
| LNR bearing rubber | 10% |
High damping rubber bearing is widely used in the quake-prone areas for bridge, building and other constructions.
1. Advanced and Sufficient equipment More than 100 sets of most advanced equipment in our workshop ensure timely delivery time for large orders. Additional, it can ensure standardized production, which accord with international standard.
2. Experienced and skilled worker team Equipped with professional production skills and several years experience, our worker team can improve production efficiency and reduce production losses for cost reduction.
3. Multiple models for completed products We have almost all of standard bearing pad models to produce standard bearing pads, including pot bearing, laminated bearing pad, spherical bridge bearing, high damping rubber bearing and lead rubber bearings.
4. Perfect Package & Timely delivery All the products are inspected before loading, then they will be perfectly packed. Then our skilled loading team will operate the equipment for easy and fast loading.
5. Professional sales team Full knowledge of bearing pad products, good spoken and written English and excellent communication skills can offer you the best solutions to your questions. You can ask for recommendation, customized service and any other information you want from them.
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