Friction damper

The friction damper mainly includes the middle steel plate, the two outer steel plates and the friction material between the steel plates. The friction damper is the friction force generated by the relative slip between the intermediate steel plate and the friction material, which converts the vibration energy of the building into heat energy, so as to reduce the vibration response of the structure.

Features:
1. The hysteresis curve is basically rectangular, and the shock absorption effect is obvious; 2. The speed correlation and displacement correlation are small, and the performance is stable;
3. Good cycle durability, no need for post-maintenance;
4. Damping force can also be generated under small displacement;
5. The earthquake will not be damaged, so it does not need to be replaced;
6. The mechanical model is simple, and the analysis and design of structural vibration reduction are simple and easy to implement;
7. Simple structure and low cost.

Working Principle:
Friction dampers are used in engineering because of their simple construction, stable performance, and high damping force. For structures with friction dampers, under normal service loads, the friction dampers provide additional stiffness to the structure without slipping; under moderate to large earthquakes, the friction dampers provide additional damping to the structure by producing frictional slip work to absorb the energy input from the earthquakes, thereby reducing the structural response.
Contact Us
  • Connection method:

    Selection parameters table:

    Model

    Friction load Fd, 8 =0  (kN)

    Slip damping force Fd  (kN)

    Ultimate load Fmax  (kN)

    Slip displacement Ud  (mm)

    Ultimate displacement

    Umax (mm)

    Wide D  (mm)

    Wide D  (mm)

    Wide

    D  (mm)

    BD-CFD-100-40

    100

    93

    100

    0.5

    40

    467

    430

    210

    BD-CFD-200-40

    200

    187

    200

    1

    40

    467

    430

    210

    BD-CFD-400-40

    400

    373

    400

    2.0

    40

    467

    430

    210

    BD-CFD-600-40

    600

    560

    600

    0.5

    40

    667

    580

    210

    BD-CFD-800-40

    800

    747

    800

    1.5

    40

    667

    580

    210

    BD-CFD-1000-40

    1000

    933

    1000

    0.5

    40

    667

    580

    210

    BD-CFD-1200-40

    1200

    1120

    1200

    1.5

    40

    800

    730

    210

    BD-CFD-1400-40

    1400

    1307

    1400

    0.5

    40

    800

    730

    210

    BD-CFD-1600-40

    1600

    1493

    1600

    1.5

    40

    800

    730

    210

    BD-CFD-1800-40

    1800

    1680

    1800

    0.5

    40

    800

    730

    210

    BD-CFD-2000-40

    2000

    1867

    2000

    1.5

    40

    800

    730

    210

    BD-CFD-100-60

    100

    93

    100

    0.5

    60

    700

    430

    210

    BD-CFD-200-60

    200

    187

    200

    1

    60

    700

    430

    210

    BD-CFD-400-60

    400

    373

    400

    2.0

    60

    700

    430

    210

    BD-CFD-600-60

    600

    560

    600

    1

    60

    1000

    580

    210

    BD-CFD-800-60

    800

    747

    800

    2.0

    60

    1000

    580

    210

    BD-CFD-1000-60

    1000

    933

    1000

    1

    60

    1000

    580

    210

    BD-CFD-1200-60

    1200

    1120

    1200

    2.0

    60

    1200

    730

    210

    BD-CFD-1400-60

    1400

    1307

    1400

    1

    60

    1200

    730

    210

    BD-CFD-1600-60

    1600

    1493

    1600

    2.0

    60

    1200

    730

    210

    BD-CFD-1800-60

    1800

    1680

    1800

    1

    60

    1200

    730

    210

    BD-CFD-2000-60

    2000

    1867

    2000

    2.0

    60

    1200

    730

    210

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 Friction damper manufacturers and suppliers in China, we provide Friction damper for better Shock Absorption system.

HOT PRODCUTS

  • Metal damper

    Metal damper

  • BRB(buckling restrained brace)

    BRB(buckling restrained brace)

  • Viscous fluid damper

    Viscous fluid damper

  • Viscoleastic damper

    Viscoleastic damper

  • Friction damper

    Friction damper

  • Metal Composite Damper (MHD)

    Metal Composite Damper (MHD)

HOT NEWS

  • Innovating Safety: The Low Damping Lead Rubber Bearing Seismic Isolation Device

    Innovating Safety: The Low Damping Lead Rubber Bearing Seismic Isolation Device

    In the realm of earthquake engineering, a groundbreaking technology is emerging to redefine seismic resilience: the low damping lead rubber bearing (L...

    Apr 12,2024

  • Lead Rubber Bearing Manufacturers: Pioneering Safety in Infrastructure

    Lead Rubber Bearing Manufacturers: Pioneering Safety in Infrastructure

    In the realm of structural engineering and seismic resilience, lead rubber bearings (LRBs) stand out as crucial components that mitigate the impact of...

    Apr 05,2024

  • Enhancing Structural Stability: Unveiling the Properties of Lead Rubber Bearing Seismic Base Isolation Devices

    Enhancing Structural Stability: Unveiling the Properties of Lead Rubber Bearing Seismic Base Isolation Devices

    In the realm of civil engineering, the properties of lead rubber bearing seismic base isolation devices are gaining recognition as crucial elements in...

    Mar 27,2024

  • Revolutionizing Seismic Resilience: The Power of Low Damping Lead Rubber Bearing Base Isolation

    Revolutionizing Seismic Resilience: The Power of Low Damping Lead Rubber Bearing Base Isolation

    In the realm of structural engineering, the concept of low damping lead rubber bearing base isolation is making waves as a groundbreaking solution to ...

    Mar 22,2024

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