A damper includes a vibration energy buffering transfer unit and a vibration energy dissipation unit. The vibration energy buffering transfer unit includes a plurality of piston transfer structures and connecting tubes, the piston transfer structures includes a cylinder and a piston arranged as a pair, the plurality of piston transfer structures surrounding the vibration energy dissipation unit, the connecting tubes inter-connecting the plurality of cylinders, the vibration energy dissipation unit includes a damping liquid accommodating cavity and damping liquid accommodated in the damping solution accommodating cavity, and one end of the cylinder or the piston being connected to the damping fluid accommodating cavity. The load-bearing enclosing structure provided with said damper can effectively suppress vibration.

Method, apparatus, and systems are disclosed for damping the movements of structures undergoing dynamic forces. The disclosed dampers are a new type of steel plate dampers, intended to reduce the cost and improve the performance of structures subject to severe seismic loading. While in these dampers the metal plates undergo plastic deformation as a method of absorbing and dissipating energy, the disclosed designs do not allow the stress and strain in the metal plates to go above a predetermined design value and; therefore, the new dampers have long lives and do not need repair or replacement after a big earthquake or similar events. These dampers may be used for building and non-building structures. In such applications the required damping capacities are relatively high and different scales of sliding force and stroke are required.

A new seismic isolation bearing assembly is disclosed. The assembly includes a first isolation bearing plate, a second isolation bearing plate, and a moveable bearing element disposed between the first and second isolation bearing plates, each of the first and second isolation plates comprises a solid material and a surface facing the other isolation plate comprising a polymeric material different from the solid material. The polymeric material is effective to enhance the operability of the assembly.

An anti-seismic device (1) for load-bearing structures or machines for example automated warehouses, comprises at least one supporting foot (3) suitable for being fixed to a load-bearing structure of the automated warehouse. The supporting foot (3) is configured for resting and sliding on a support and sliding surface (5), so as to allow relative movement of the automated warehouse with respect to the support and sliding surface (5). At least one abutment element (10) is suitable for being solidly constrained with the support and sliding surface (5). At least a spring device (12) is suitable for being interposed between the abutment element (10) and the automated warehouse. The spring device (12) is configured to generate a return action (force and/or torque) of the automated warehouse as a result of the relative movement of the automated warehouse with respect to the support and sliding surface (5). The spring device (12) has a non-linear, preferably progressive elastic characteristic.

Invention; is related to isolators eliminating circular forces caused by earthquake forces acting on the building. It is placed between foundation of structures manufactured by steel construction, concrete, prefabricated structure or other methods and structure and which reduces/terminates impact of earthquakes on structures. Thus, damage to be given by earthquake to carrying elements of building is eliminated.

An inertial mass amplification type tuned mass damper is disclosed. The inertial mass amplification type tuned mass damper comprises a hollow box, an H-shaped mass block, gears a, gears b, a rectangular frame, a steel ring, viscous dampers, a steel sheet, springs, rotating shafts and balls. In the present invention, an inertial damping force is amplified by adjusting the radius ratio of the gears a and the gears b; and damping parameters can be conveniently changed by adjusting the mass of the mass block, the spring stiffness and the like. The present invention has the advantages that the design mass is small, which can avoid the adverse effects of excessive additional gravity on the structure and improve the performance of the structure. The present invention has reasonable design and small occupied space, can save more use area for buildings and can greatly improve the utilization efficiency of the buildings.

The dynamic vibration damping system for a building, comprises damping units inserted in housings located in the building façades, or slabs, or partition walls. The damping units comprise a swinging mass (2) sliding horizontally in opposite directions on a swinging plane parallel to the façade or to the slab or to the partition wall when the building vibrates, horizontal springs (3) to absorb the energy generated by the movements of the swinging mass (2), and dampers (4) to damp movements of the swinging mass (2).

A double variable sliding isolator including a bottom sliding plate, a top sliding plate, and a friction piece is provided. The bottom sliding plate has a bottom sliding surface that has at least two curvatures. The top sliding plate is disposed over the bottom sliding plate and has a top sliding surface that has at least two curvatures. The friction piece is disposed between the top sliding plate and the bottom sliding plate and the friction piece is in contact with the bottom sliding surface and the top sliding surface. When an external force is applied to the bottom sliding plate and the top sliding plate, the bottom sliding plate and the top sliding plate will generate a relative displacement, so that the friction piece slides along the bottom sliding plate and the top sliding plate.

An impulse damper device, which is specifically provided for the construction or the dismantling of tall, slim constructions, in particular towers and preferably towers of wind turbines, in order to minimize or eliminate undesired vibration states, which often occur during the construction or taking apart and lead to large increases in the vibration amplitudes of the vibration system. The impulse tuned mass dampers are preferably provided for temporary mobile use, but, in principle, are also suitable for permanent use.

A seismic isolation device comprises an isolation support and an inerter unit arranged on the side of the isolation support, the isolation support having an upper plate and a lower plate, the inerter unit having a rotating rod extending to the side of the lower plate and a flywheel linked with the rotating rod, wherein when the upper and lower plates of the present invention undergo relative displacement due to the occurrence of an earthquake, the inerter unit provide an inertance to reduce the displacement reaction, thereby providing better seismic isolation effect.