Bridge automatic leveling combined vibration isolation rubber bearing

An automatic leveling and vibration isolation rubber technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problem of uneven force on rubber bearings, and achieve the effects of simple structure, improved bearing performance, and convenient installation.

Pending Publication Date: 2019-01-18
SHENZHEN MUNICIPAL DESIGN & RES INST
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Problems solved by technology

[0003] The purpose of the present invention is to provide a bridge self-leveling combined vibration-isolation rubber bearing to solve the problems in the prior art above. By changing the connection structure of the lead ru

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  • Bridge automatic leveling combined vibration isolation rubber bearing
  • Bridge automatic leveling combined vibration isolation rubber bearing

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] The purpose of the present invention is to provide a bridge self-leveling combined vibration-isolation rubber bearing to solve the problems in the prior art above. By changing the connection structure of the lead rubber bearing or high damping rubber bearing, the The negative bending moment at the end caused by the deflection and deformation of the beam body can effectively change the problem of uneven force inside the rubber bearing.

[0020] The bridg...

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Abstract

The invention discloses a bridge automatic leveling combined vibration isolation rubber bearing, which includes a top plate with cylindrical protrusions arranged in sequence from top to bottom, an upper connecting plate with a cylindrical groove, a rubber bearing body and a lower connecting plate, wherein the top plate is connected with the upper structure of the bridge through an anchor bolt, theupper connecting plate is fixed on the top end of the rubber bearing body, the cylindrical protrusion of the top plate is matched with the cylindrical groove on the top surface of the upper connecting plate, and the cylindrical groove is coated with lubricating oil; the upper and lower ends of the rubber bearing body are respectively provided with an upper sealing plate and a lower sealing plate,and the bottom end of the lower connecting plate is connected with the lower structure of the bridge through an anchor bolt. The self-leveling composite isolation rubber bearing of the bridge can release the bending moment of the beam end caused by the deflection of the beam body, uniformly compress the rubber bearing, and effectively improve the bearing capacity under the limit load of the leadrubber bearing or the high damping rubber bearing; Reducing the local stress at the joint of bearing, pier and beam; the invention has the advantages of simple structure, convenient processing, convenient installation and maintenance.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a bridge self-leveling combined shock-isolation rubber bearing. Background technique [0002] Lead-core rubber bearings and high-damping rubber bearings are widely used in bridge seismic isolation. Lead-core rubber and high-damping rubber bearings have good deformation capacity, and the beam end bending moment caused by the deflection deformation of the bridge superstructure passes through Adjust the deformation of the support, and the upper support will have a certain inclination. Because the rubber support is subjected to the bending moment, the internal stress distribution of the support will be uneven, resulting in the rubber under high stress state peeling off from the steel plate in advance or being crushed. It has a great impact on the ultimate mechanical performance of the bearing under the earthquake action, greatly reduces the bearing capacity of the isolatio...

Claims

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Application Information

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IPC IPC(8): E01D19/04
CPCE01D19/041
Inventor 陈宜言于芳姜瑞娟董桔灿易小纬
Owner SHENZHEN MUNICIPAL DESIGN & RES INST
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