Damping bearing in convertible antiseismic mode and damping bridge apparatus

Abstract

Disclosed are a damping bearing in convertible antiseismic mode and a damping bridge apparatus. The damping bearing includes a bearing body, a damping component, a hydraulic component, and a connecting piece. The bearing body includes a first bearing, a second bearing, and a third bearing. The damping component includes an arc damping member. The arc damping member is located between the first bearing and the second bearing. One end of the arc damping member is connected to the second bearing, the other end of the arc damping member is connected to the first bearing by using the connecting piece, and after the connecting piece is cut off, the arc damping member is capable of sliding relative to the first bearing. The hydraulic component is connected to the arc damping member and the second bearing respectively.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the field of bridge antiseismic and bridge seismic mitigation and isolation technologies, and specifically, to a damping bearing in convertible antiseismic mode and a damping bridge apparatus.BACKGROUND OF THE INVENTION[0002]Earthquake is a phenomenon of propagation shaking caused by an interior violent motion of the earth. When a great earthquake breaks out, enormous seismic energy is released, causing massive damage to the earth surface and human engineering, and severely threatening the life and property safety of people. Damage caused by an earthquake to a bridge directly affects smoothness of a lifeline in an earthquake relief process. Therefore, how to enhance an antiseismic capability of a bridge and reduce damage of the bridge caused by an earthquake is a critical problem.[0003]The nature and extent of damage caused to bridge structures vary depending on different structural forms and detail structures of bridges a...

AI Technical Summary

Benefits of technology

[0005]An objective of the present invention is to provide a damping bearing in convertible antiseismic mode. The damping bearing has a simple structure, complete functions, stable performance, and a high antitorque capability under action of an earthquake. The damping bearing is capable of dissipating seismic energy in a plurality of manners and has high structural stability.

[0006]Another objective of the present invention is to provide a damping bridge apparatus. The damping bridge apparatus has a simple structure, complete functions, stable performance, and a high antitorque capability under action of an earthquake. The damping bridge apparatus is capable of dissipating seismic energy in a plurality of manners and has high structural stability.

[0018]Compared with the prior art, the damping bearing in convertible antiseismic mode and the damping bridge apparatus provided by the present invention have the following beneficial effects:

Problems solved by technology

When a great earthquake breaks out, enormous seismic energy is released, causing massive damage to the earth surface and human engineering, and severely threatening the life and property safety of people.

Damage caused by an earthquake to a bridge directly affects smoothness of a lifeline in an earthquake relief process.

Therefore, how to enhance an antiseismic capability of a bridge and reduce damage of the bridge caused by an earthquake is a critical problem.

During an earthquake, if the bearing is damaged, other parts of the bridge are affected greatly, and consequently, earthquake damage becomes worse.

Under seismic load, these types of antiseismic bearings still have insufficient antiseismic capabilities, for example, a poor antitorque capability, an insufficient limiting capability, and a low impact resistance capability.

Therefore, a manufacturing process thereof is complex, high performance of materials is required, and a total system cost is greatly increased.

From a perspective of environmental protection, pollution of the lead rubber bearing is severe.

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