Prefabricated swing pier structure system with additional energy dissipation support or self-resetting energy dissipation support

An energy-consuming support, prefabricated assembly technology, used in bridges, bridge parts, bridge construction, etc., can solve the problems of lack of recoverability, large post-earthquake repair pressure, and large residual displacement, and achieve good post-earthquake recovery ability, reduce Damage to small bridge piers and the effect of reducing residual displacement
CN113481833AInactive Publication Date: 2021-10-08BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2021-10-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

A prefabricated assembly type swing pier structure system with an additional energy dissipation support or a self-resetting energy dissipation support belongs to the technical field of seismic mitigation and isolation of bridge engineering, and mainly comprises a prefabricated bearing platform, a prefabricated pier column, a prefabricated cover beam, a prefabricated support and a resetting rib, two bearing platform sleeves are arranged on the prefabricated bearing platform and are used for connecting the two lower lug plates; column sleeves are arranged at the upper part and the lower part of the prefabricated pier column; a cover beam sleeve is arranged in the middle of the prefabricated cover beam and used for being connected with an upper lug plate. The prefabricated support is arranged between the lower lug plates and the upper lug plate and is hinged through a pin; the reset rib penetrates through holes reserved in the prefabricated bearing platform, the prefabricated pier column and the prefabricated cover beam, and are fixedly connected to the lower end of a platform body of the prefabricated bearing platform and the upper end of a beam body of the prefabricated cover beam through a high-strength bolt and a groove-shaped steel gasket. In the earthquake process, the whole system swings, the bending moment of the top and the bottom of the pier column is released, and plastic hinges at joints are avoided.
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Description

technical field

[0001] The invention relates to a prefabricated swing bridge pier structure system with additional energy-dissipating supports or self-resetting energy-dissipating supports, belonging to the technical field of vibration reduction and isolation in bridge engineering. Background technique

[0002] Earthquake disasters are considered to be one of the most serious natural disasters faced by human beings, and earthquake disasters are characterized by suddenness, low predictability, and strong destructiveness. When strong earthquakes occur, huge seismic energy will be released, causing surface and A large number of artificial engineering damages seriously endanger people's lives and property safety. my country is located between the Eurasian seismic belt and the circum-Pacific seismic belt, and most of the country is an earthquake zone, so the seismic performance of structures needs to be improved urgently. The bridge is a pivotal project of the traffic lifeline, ...

Claims

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