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.
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  • 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.

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