Bridge flexibility damping limiting device

By designing a bridge resilience damping and limiting device, the linkage deformation of the traction component, hinge component, and elastic beam is utilized to reduce the seismic transmission rate, solving the problems of unsatisfactory performance and high maintenance costs of existing bridge seismic limiting devices, and achieving effective protection and low-cost maintenance of bridges.

CN117604881BActive Publication Date: 2026-06-26XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Filing Date
2024-01-12
Publication Date
2026-06-26

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Abstract

The application discloses a bridge toughness damping limiting device and belongs to the technical field of bridge anti-seismic. The bridge toughness damping limiting device comprises a traction piece fixed at one end of a bridge main beam bottom; a guide piece is slidably connected with the traction piece at one end and fixed at the other end of a bridge pier top; the first and second hinged components of a damping part are both elastic components, the first and second hinged components are symmetrically distributed on both sides of a guide rod, and the first and second hinged components are hinged with the traction piece at the end close to the traction piece and hinged with the guide piece at the end close to the guide piece; when the traction piece is close to the guide piece, the first and second hinged components can be deformed along with the movement of the traction piece. The bridge toughness damping limiting device can reduce the axial stiffness of the device through the linkage deformation of the traction piece, the hinged component and the elastic beam, thereby reducing the transmission rate of the device to the seismic motion and protecting the superstructure of the bridge.
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