Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Friction pendulum earthquake reduction and isolation support with multilayer shear force pins

A shear pin, vibration reduction and isolation technology, which is applied to bridge parts, bridge materials, bridges, etc., can solve the problems of different seismic fortification standards, affecting bridge performance, and different seismic performance standards of bridge supports, and achieves easy replacement Effect

Active Publication Date: 2018-11-23
RES INST OF HIGHWAY MINIST OF TRANSPORT
View PDF9 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional friction pendulum type seismic isolation bearing has only one layer of shear pins and isolation retaining ring. Under different earthquakes, the seismic isolation displacement limit of the seismic isolation bearing is certain.
However, under different earthquakes, the seismic fortification standards of bridges are different, and the seismic performance standards of bridge supports should also be different. It is easy to cause large displacements of bearings under the action of moderate earthquakes or typhoons, which seriously affects the performance of bridges.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Friction pendulum earthquake reduction and isolation support with multilayer shear force pins
  • Friction pendulum earthquake reduction and isolation support with multilayer shear force pins
  • Friction pendulum earthquake reduction and isolation support with multilayer shear force pins

Examples

Experimental program
Comparison scheme
Effect test

example

[0032] The invention provides a structure type of friction pendulum shock-absorbing and isolating bearing with multi-layer shear pins. Under non-earthquake action, the lateral movement energy is absorbed by plane slide plate and spherical slide plate. Under moderate earthquake action, the inner layer shear pin Shearing, the seismic energy is dissipated through the sliding friction of the shock-absorbing sliding surface, and the outer shear pin has a certain rigidity so that it will not be sheared under the action of a moderate earthquake, so as to play a certain role in limiting; Under the action of earthquake, the outer shear pin is sheared, and the seismic energy is still dissipated through the sliding friction of the damping sliding surface.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a friction pendulum earthquake reduction and isolation support with multilayer shear force pins. The friction pendulum earthquake reduction and isolation support is characterized in that multilayer earthquake isolation baffle rings coaxially sleeve the top of an earthquake reduction base and are fixedly connected with the earthquake reduction base by the shear force pins, slide cushion areas are arranged between the multilayer earthquake isolation baffle rings, and the inner wall of the earthquake isolation baffle ring of the innermost layer is connected with the side walls of an earthquake reduction spherical pendulum in a slide fit manner; a limit skirt which is slidably connected with the side walls of the earthquake reduction spherical pendulum is arranged at the bottom of an upper seat plate by means of manufacturing, and the swing directions of the earthquake reduction spherical pendulum can be restrained by the limit skirt. The friction pendulum earthquake reduction and isolation support has the advantages that horizontal displacement friction pendulum earthquake reduction and isolation support structural types can be controlled under the effects of medium earthquake and major earthquake, accordingly, targets on multiple properties or targets on the earthquake resistance of bridges under multilevel earthquake ground motion can be met by the friction pendulum earthquake reduction and isolation support, and the friction pendulum earthquake reduction and isolation support is high in applicability.

Description

technical field [0001] The invention relates to the technical field of bridge construction, and relates to a shock-absorbing and isolating support, in particular to a friction pendulum-type shock-isolating support with multi-layer shear pins. Background technique [0002] Earthquake is a sudden natural disaster with strong destructive power and wide range of influence, and it is extremely destructive to bridges. As one of the lifeline projects, bridge engineering is severely damaged for post-earthquake rescue work, restoration and reconstruction, and economic construction. bring great resistance. How to simply and effectively improve the aseismic performance of bridges has always been the research focus in the field of bridge aseismic. [0003] The bridge bearing is an important energy-dissipating component, which can change the dynamic response characteristics of the structure in the earthquake through a certain seismic isolation design, so as to reduce the seismic input. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04E01D101/30
CPCE01D19/042E01D19/046E01D2101/30
Inventor 王克海张盼盼鲁冠亚
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products