Energy-dissipation and seismic-mitigation bridge support

A bridge bearing and bearing technology, used in bridges, bridge construction, bridge parts, etc., can solve the problems of small additional mass and inability to improve the seismic effect, so as to improve the overall seismic performance, eliminate vibration, and reduce production costs. Effect

Inactive Publication Date: 2017-05-10
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the installation space of the pier body, the additional mass is small, and the anti-seismic effect has not been improved.

Method used

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  • Energy-dissipation and seismic-mitigation bridge support
  • Energy-dissipation and seismic-mitigation bridge support
  • Energy-dissipation and seismic-mitigation bridge support

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] refer to figure 1 , an energy-dissipating shock-absorbing bridge bearing of the present invention, the bearing comprises an upper bearing plate 21, a lower bearing plate 22 and a vertical bearing structure 20 between the two, the upper bearing plate 21, the lower bearing plate The seat plate 22 is fixedly connected with the beam body 10 and the pier body pad 30 respectively. The outer edges of the upper support plate 21 and the lower support plate 22 respectively have a vertically extending upper baffle plate 211 and a lower baffle plate 221 structure, and an elastic connection is arranged between the upper baffle plate 211 and the lower baffle plate 221. 40, the distal end and the proximal end of the elastic connector 40 are fixedly connected to the upper baffle 211 and the lower baffle 221 respectively. The elastic connecting piece 40 is made...

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PUM

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Abstract

An energy-dissipation and seismic-mitigation bridge support aims to effectively eliminate harmful vibration of a pier at an inherent frequency band and reduce pier top displacement, pier body bending moment and stress of a high pier so as to effectively improve the overall anti-seismic property of a bridge. The energy-dissipation and seismic-mitigation bridge support comprises an upper support plate, a lower support plate and a vertical support structure located between the upper support plate and the lower support plate, and the upper support plate and the lower support plate are fixedly connected with a beam body and a pier body cushion stone. An upper baffle and a lower baffle are arranged on the outer edge of the upper support plate and the outer edge of the lower support plate correspondingly and vertically extend, elastic connecting pieces are arranged on the horizontal plane between the upper baffle and the lower baffle, the far end and the near end of each elastic connecting piece are fixedly connected with the upper baffle and the lower baffle correspondingly, and the optimal connecting rigidity ki and connection damping ci exist between the beam body and the support.

Description

technical field [0001] The invention relates to bridges, in particular to an energy-consuming and anti-seismic bridge support. Background technique [0002] The bridge bearing connects the bridge pier and the girder body. During an earthquake, it can prolong the structural period and consume a large amount of seismic energy. It has been widely used in bridge engineering. The traditional lead rubber bearing has an obvious effect on eliminating vertical vibration, but its effect on energy dissipation of vibration in the horizontal direction is limited. The friction pendulum bearing can consume part of the lateral vibration, but the horizontal stiffness is too low, which will reduce its vibration damping effect for weak foundation or soft pier. The viscous damper is a rod-type structure with directionality, but the direction of earthquake action cannot be predicted in advance. At the same time, it does not have a return function and needs to rely on external force to return. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04
CPCE01D19/04
Inventor 杨吉忠陶奇胡连军肖飞知冯读贝代丰郑晓龙杨国静
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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