Anti-overturning, anti-beam-falling, seismic isolation and reduction bearings.
The LZFP anti-overturning, anti-beam-falling, seismic isolation and reduction bearings (also known as universal rotation, tension-resistant and friction pendulum spherical bearings) are a series of seismic isolation and reduction products for buildings and bridges. They are developed by referring to the anti-uplift bearings in the United States, friction pendulum bearings and the universal seismic isolation devices in Japan, as well as in accordance with the national standard "Spherical Bearings for Bridges" and other industry specifications.
The LZFP anti-overturning, anti-beam-falling, seismic isolation and reduction bearings are a type of seismic isolation and reduction bearings with ultra-large displacement, ultra-large tensile force and large rotation angle. Under the tension working condition, they can simultaneously meet the functional requirements of universal displacement and universal rotation angle, filling the gaps in the fields of domestic anti-overturning bearings and friction pendulum seismic reduction bearings.
The intellectual property rights of this technology are owned by Hebei Luze.
Principle of Vibration Damping
This product is divided into unidirectional type, bidirectional type and fixed type.
1. It can solve the problems of large rotation angles accompanied by large tensile forces and large displacements that occur in large-span structures or during earthquakes.
2. It can achieve universal rotation and universal displacement while there is tensile force in the structure.
3. Besides reducing the seismic response by effectively prolonging the period of the bridge structure, it can also dissipate seismic energy through its own friction, further reducing the seismic response of the structure and its self-recovery ability after displacement.
4. This patented product of utility model is more accurate in the mechanism of longitudinal bridge displacement, transverse bridge displacement and universal displacement.
5. It is simple to manufacture, has a clear force-bearing mechanism, is relatively small in size and has a lower cost.
It is composed of an upper bearing plate, a stainless steel plate, a curved polytetrafluoroethylene (PTFE) sliding plate, a rotating tension plate, a planar polytetrafluoroethylene (PTFE) sliding plate, an intermediate steel plate, a lower bearing plate, a rotating tension plate, a shear plate, a tensile plate and a limiting device.
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