HDR ( high damping rubber)

The product is manufactured in accordance with EN15129 standard.

Architectural High Damping Rubber Bearings (HDR)
High damping rubber bearing, which is to add various compounding agents to natural rubber to improve the damping performance of rubber (increase hysteresis loss, reduce its storage modulus), and then use this rubber with damping effect to It is a laminated product formed by hot vulcanization of steel plate and rubber with similar structure of ordinary rubber bearing. The product has good seismic isolation performance and a wide range of applications. It is a new type of building isolation product with high cost performance. Because of its simple manufacturing process and reliable product mechanical properties, it has been widely used and developed after the 5.12 earthquake.

Features of high damping rubber bearing:
1. Vertical bearing capacity, horizontal restoring force, and damping (energy absorption) in one; 2. The hysteretic characteristics of the bearing (load-deformation curve) are full and the energy consumption is significant;
3. The rubber formula is improved, and the equivalent damping ratio can reach more than 12%;
4. Low maintenance and management costs (no need for other damping devices);
5. The residual deformation after the big earthquake is very small, no need to replace;
6. The surface of the high damping bearing is covered with a rubber protective layer, which protects the internal rubber from ozone and ultraviolet rays, and has better aging resistance, and the equivalent damping ratio in 50 years is reduced by less than 2%;
7. HDR high damping rubber has low temperature dependence and is widely used in different climatic regions;
8. HDR high damping rubber has the same superior creep performance as natural rubber;
9. Environmental protection and no pollution.
Contact Us

Founded in 2016

Zhejiang Earthquake Prevention Technology Co., Ltd. is a holding subsidiary established by Hangzhou Diping Zhenan Technology Co., Ltd. in September 2020. Zhejiang Zhenfang Technology Co., Ltd. has a registered capital of 26 million yuan, its own factory building covers an area of 10,800 square meters, and the standard factory building area is 6,000 square meters. With the great help of the Institute of Engineering Mechanics of China Earthquake Administration, the company has established a technical team led by domestic experts in seismic reduction and isolation technology, which has laid a solid foundation for long-term development in the future.
Zhejiang Earthquake Prevention Technology Co., Ltd is a member of China Disaster Prevention Association. Famous HDR ( high damping rubber) manufacturers and suppliers in China, we provide HDR ( high damping rubber) for better Seismic Isolation system.

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product ADVANTAGE

  • Friction damper

    It mainly includes the middle steel plate, the two outer steel plates and the friction material between the steel plates.

  • Simple mechanical model

    Simple and easy analysis and design of structural vibration reduction.

  • Simple structure and low cost

    Even large earthquakes are not damaged, so there is no need to replace.

  • Damping

    The hysteresis curve is basically rectangular.

  • Stable performance

    Velocity correlation, displacement correlation is small.

  • Good durability

    No post-maintenance required.

  • Energy absorption

    Vertical bearing capacity, horizontal restoring force, damping (energy absorption) trinity.

  • Damping ratio

    Improved rubber formula, the equivalent damping ratio can reach more than 12%.

  • Maintenance costs

    Low maintenance and management costs (no additional damping devices required).

  • Environmental friendly

    HDR high damping rubber has low temperature dependence and is widely used in different climatic regions.

  • Creep properties

    HDR high damping rubber has the same superior deformation performance as natural rubber.

  • Aging resistance

    The surface of the high damping bearing is covered with a rubber protective layer to protect the internal rubber from ozone and ultraviolet rays.

  • Viscous resistance

    It is a kind of damper related to stiffness and speed.

  • Widely used

    It is used in high-rise buildings, bridges, seismic reconstruction of building structures and other fields.

  • Airbag

    The damper absorbs and dissipates the impact energy of the earthquake on the building structure to the maximum extent.

  • Silicone oil medium

    The medium has a small viscosity temperature coefficient, and good radiation resistance.

  • Electrical insulation properties

  • Ozone resistance, corona resistance