Self-resetting energy dissipation damping device for anti-seismic support of bridge

By using a self-resetting energy-dissipating damping device, the problems of bridges being easily damaged under strong earthquakes and having insufficient post-earthquake recovery capacity are solved, achieving multi-magnitude adaptability and rapid repair, and making it suitable for bridge reinforcement in earthquake-prone areas.

CN120867191AInactive Publication Date: 2025-10-31QINHUANGDAO ROAD&BRIDGE CONSTRUCT DEV CO LTD +2
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Patent Information

Application Number
CN202511396262.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2025-10-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing bridge seismic reinforcement methods fail to effectively consider the diversity and complexity of earthquakes, making bridges vulnerable to damage under strong earthquakes and lacking sufficient post-earthquake recovery capabilities, thus affecting the efficiency of traffic restoration.

Method used

A self-resetting energy-dissipating damping device is designed, comprising damping components and steel members. Through a graded energy dissipation mechanism and a self-resetting function, it can effectively dissipate seismic energy under different magnitudes, control structural response, reduce damage, and suppress residual deformation.

Benefits of technology

It significantly enhances the seismic adaptability and post-earthquake recovery capability of bridges, meets the safety requirements under multiple earthquake magnitudes and working conditions, and the structure can be quickly disassembled and replaced, reducing maintenance costs, making it suitable for earthquake-prone areas.

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Abstract

The invention relates to the technical field of bridge damping devices, in particular to a self-resetting energy dissipation damping device for a bridge anti-seismic support. Comprising a damping assembly and a steel member, and the damping assembly comprises a cover plate, a locking screw rod, an elastic piece and a core body; the two cover plates are oppositely arranged and connected through a plurality of locking screws, the two ends of each locking screw make contact with the cover plates through elastic pieces, a containing space is formed between the two cover plates, the core bodies are arranged in the containing space in pairs and are in sliding connection with the locking screws, and one end of each core body is fixedly connected with a steel member; through a graded energy dissipation mechanism and a self-resetting function, energy input by an earthquake can be effectively dissipated, structural response can be controlled, damage can be reduced, residual deformation can be inhibited, the anti-seismic adaptability and post-earthquake recovery capability of a bridge structure can be remarkably enhanced, and the bridge safety requirements under multiple earthquake magnitudes and multiple working conditions can be met.
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