The traditional strengthening methods of structures achieve their goals by enhancing the strength and stiffness of the structure itself, such as the method of enlarging the section, the method of outsourcing shaped steel, the method of prestressing, the method of adding supporting points, the method of bonding steel, the method of carbon fiber reinforcement, the method of adding structural columns and ring beams, and the method of adding seismic walls. Although these methods have achieved certain results in a large number of engineering practices, there are still a series of problems, such as adding anti-seismic walls will increase the self weight of the structure, so the bearing capacity of the foundation should be considered. When the bearing capacity is exceeded, the foundation should also be reinforced, making the construction cycle long and the cost high; Some reinforcement methods (such as adding structural columns and ring beams) may affect the beauty or use space of the building, which is extremely undesirable for historical buildings; The reconstructed buildings are generally subject to adverse seismic factors such as rigid upper and flexible lower, head weight and foot weight. In view of the above shortcomings, domestic and foreign engineering designers and researchers gradually turn to the use of viscous damper energy dissipation control technology as a new method of structural strengthening, and have carried out a lot of research
Viscous damper energy dissipation and vibration reduction strengthening technology absorbs the seismic energy of the input structure by setting energy dissipators in some parts of the structure, which changes the disadvantage of traditional strengthening methods that energy is dissipated only by sacrificing structural members, and realizes the principle of multi defense of building structures in a real sense. There are many types of energy consumers, and their characteristics are different