Damage-controllable energy dissipator

Abstract

The invention discloses a damage-controllable energy dissipator. The energy dissipator comprises an extrusion rotating part, deformable connecting plates, a friction energy dissipation sheet and a base plate, a sliding groove is formed in the upper part of the extrusion rotating part, a sliding part is connected in the sliding groove, a first friction lug plate and first yield lug plates are connected to the lower part of the extrusion rotating part, a second friction lug plate and second yield lug plates are connected to the base plate, the first friction lug plate and the second friction lugplate are hinged through a first pin shaft, the end, which penetrates out of the first friction lug plate and the second friction lug plate, of the first pin shaft is provided with an elastic elementin a penetrating mode and then is locked by a locking nut, the friction energy dissipation sheet is clamped between the first friction lug plate and the second friction lug plate, one ends of the deformable connecting rods are hinged to the first yield lug plates through second pin shafts, and the other ends of the deformable connecting rods are also hinged to the second yield lug plates throughsecond pin shafts. The energy dissipator has the advantages that the energy dissipation and seismic mitigation effects can be fully exerted, in addition, the damage development degree of the energy dissipator can be effectively controlled, and the energy dissipation and seismic mitigation effects are guaranteed.

Description

technical field [0001] The invention relates to the technical field of earthquake resistance and disaster prevention of building structures, in particular to a damage-controllable energy dissipator. Background technique [0002] The energy dissipator is an anti-seismic device installed in the building structure to improve the seismic performance of the building. Existing buildings mostly use displacement-related dampers, such as friction dampers or metal yield dampers, but friction dampers The energy dissipation is earlier, and its sliding displacement is generally less than 0.5mm, while the metal yield damper can dissipate energy and play a shock absorption role only after yielding, and the yield deformation of the metal yield damper is larger than that of the friction damper. Therefore, the metal yield damper cannot play the role of energy dissipation in weak vibration. Therefore, the existing energy dissipators cannot fully exert the energy dissipation and shock absorpti...

AI Technical Summary

Problems solved by technology

[0002] The energy dissipator is an anti-seismic device installed in the building structure to improve the anti-seismic performance of the building. Existing buildings mostly use displacement-related dampers, such as friction dampers or metal yield dampers, but friction dampers The energy consumption is early, and its sliding displacement is generally less than 0.5mm, while the metal yield damper can only dissipate energy and play a shock absorbing role after yielding, and the yield deformation of the metal yield damper is larger than that of the friction damper Therefore, the metal yield damper cannot play an energy-dissipating role in weak vibrations

Therefore, none of the existing energy dissipators can fully play the role of energy dissipation and shock absorption under different vibration intensities. In addition, the existing displacement-related dampers are easily damaged due to extreme deformation, thus affecting the shock absorption effect.

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