This series of bearings adopt elastic damping elements, which have the characteristics of clear mechanism, stable structural parameters and excellent damping performance.
Product Detail
1. This series of bearings adopt elastic damping elements, which have the characteristics of clear mechanism, stable structural parameters and excellent damping performance. The damping principle is that after the horizontal force reaches a certain degree, the damping spring begins to deform intermittently to realize the buffering effect. When the structure turns, the ball core rotates and releases the torque generated by the upper structure. In earthquake, both rigid anti-seismic measures and flexible anti vibration measures work at the same time to resist the huge earthquake input energy. In the case of large earthquake fluctuation, it can not only ensure the reasonable relative displacement between the upper and lower structures of the bridge, reduce the amplification factor of seismic force, but also maintain the unity of the structure.
This series of bearings can resist earthquakes of magnitude 8-11, and have a good anti-seismic and shock absorption effect on engineering structures in high intensity areas, especially in straight down seismic areas.
This series of bearings are suitable for long-span space structures and long-span bridges, especially for wide bridges, curved bridges and inclined bridges, especially for engineering structures in high intensity earthquake areas.
2. Characteristic
The bearing adopts spherical contact, with large contact area, low pressure, uniform force transmission and small volume.
It can bear universal load, which can bear pressure, pulling force and shear force in any direction.
It can rotate in all directions to release bending moment in any direction
The support adopts damping spring, which can meet the vibration reduction requirements of engineering structure in high intensity area.
The bearing parts are made of steel, and there is no aging problem within 100 years
The dynamic stiffness and static stiffness of the support are large, which ensure the smooth operation of the vehicle
The bearing height is low, which is beneficial to the structural design of the bridge
Parameter index
Vertical bearing capacity 500-80000KN
Vertical pulling force 500-80000KN
Horizontal shear force 500-80000KN
The above three types of forces can be selected according to the corresponding combination, but in special cases, the design shall be reviewed separately.
Design angle 0.01-0.06rad
Displacement of movable support (± 5 - ± 1500mm)
The elastic coefficient should be selected according to the overall calculation of the project, so as to achieve the effect of uniform internal force under static state, low peak stress under dynamic action.
3. Structure
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