Corner amplification type self-resetting damper

By combining shape memory alloy materials and gear meshing technology, the high-efficiency energy dissipation and precise reset of the angle-enlarged self-resetting damper have been achieved, solving the problem of residual deformation after earthquakes in existing gear dampers and improving the seismic performance and reset accuracy of building structures.

CN122383166APending Publication Date: 2026-07-14HENAN ENG DESIGN CONSULTANTS OF CSCEC +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN ENG DESIGN CONSULTANTS OF CSCEC
Filing Date
2026-05-20
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing gear dampers exhibit significant residual deformation after earthquakes, affecting the normal use of the structure and its seismic resistance performance. They fail to meet the comprehensive requirements of building structures for energy dissipation efficiency, reset accuracy, and service stability under seismic loading.

Method used

By using shape memory alloy materials and gear meshing technology, combined with self-resetting components and monitoring components, the system achieves rotation angle amplification, energy dissipation, and self-resetting functions. The damper is reset by the deformation and restoring force of the shape memory alloy. By combining frictional energy dissipation and the deformation of the shape memory alloy sheet, the energy dissipation efficiency is improved and residual deformation is reduced.

Benefits of technology

It achieves efficient corner amplification and precise reset, improves the structural toughness and seismic performance, reduces post-earthquake repair work, and adapts to the personalized needs of various engineering scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a corner amplification type self-resetting damper, which comprises a bottom plate, a connecting assembly for connection and fixation is arranged on the upper side of the bottom plate, a top plate is arranged on the upper side of the connecting assembly, two groups of transmission assemblies for transmission and amplification of a corner are symmetrically arranged on the front and back sides of the connecting assembly, two groups of energy dissipation assemblies for energy dissipation are symmetrically arranged on the front and back sides of the connecting assembly, a self-resetting assembly for driving the connecting assembly to reset is arranged on the side of the connecting assembly, and two groups of monitoring assemblies for monitoring the change amplitude of a corner are symmetrically arranged on the self-resetting assembly; the gear transmission theory is utilized to convert the structural interlayer displacement into the amplification corner of gear circumferential motion, and the energy dissipation assembly is used for cooperation, so that the energy dissipation effect is effectively improved, the deformation participation is reduced, the function recovery of the damper can be realized by only replacing the damaged ring-shaped plate, the working state is monitored in real time by using the intelligent monitoring technology, and the fault risk is early warned.
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