Large-scan bridge seismic mitigation and isolation system

A shock-absorbing, large-span technology, used in bridges, bridge parts, bridge construction, etc., can solve problems such as high installation space requirements, large plane dimensions, and high bridge installation space requirements, achieve balanced force, and improve isolation. seismic performance, the effect of improving the seismic performance

Active Publication Date: 2017-12-08
ZHUZHOU TIMES NEW MATERIALS TECH
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the above technical problems, in high-intensity earthquake areas, long-span bridges generally adopt seismic isolation systems between the bridge girder body and bridge piers. In this case, the seismic design of bridges is often difficult to meet the design requirements; while the existing long-span semi-floating system bridges generally use lead core rubber bearings or high damping rubber bearings or elastoplasti

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
  • Large-scan bridge seismic mitigation and isolation system
  • Large-scan bridge seismic mitigation and isolation system
  • Large-scan bridge seismic mitigation and isolation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 It shows the present embodiment of the large-span bridge shock absorption and isolation system of the present invention, and the long-span bridge is a bridge with a single-span span greater than 100m. In this embodiment, the large-span bridge shock-absorbing and isolation system includes two sets of main shock-absorbing assemblies 1, and the two sets of main shock-absorbing assemblies 1 are longitudinally and symmetrically arranged along the bridge deck. The damper 12 and the longitudinal damper 13 are equipped with a shear member 111 inside the spherical support 11. When the horizontal load of strong wind and earthquake is applied, the shear member 111 is cut off, and the transverse damper 12 and the longitudinal damper 13 begin to play a role in consumption. can work. Such as figure 1 , in this embodiment, the large-span bridge shock-absorbing and isolation system is a floating system, wherein the longitudinal spherical bearing 14 is a conventional ...

Embodiment 2

[0039] figure 2 It shows another embodiment of the long-span bridge vibration isolation system of the present invention. This embodiment is basically the same as the previous embodiment, except that the long-span bridge vibration isolation system of this embodiment is a semi-floating system. The spherical bearing 11 is a fixed spherical bearing 17, a longitudinal spherical bearing 14, a transverse spherical bearing 15, a two-way spherical bearing 16, a fixed spherical bearing 17, a longitudinal spherical bearing 14 and a transverse spherical bearing There are shear members 111 in the spherical support 15, and there is no shear member 111 in the two-way spherical support 16. When a large horizontal load is applied, the shear member 111 is cut off, and the transverse damper 12 and longitudinal damper 13 start play an energy-consuming role. Among them, the fixed spherical bearing 17 is a conventional fixed spherical bearing 17, which is used to fix the bridge structure on the a...

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 provides a large-scan bridge seismic mitigation and isolation system comprising two main seismic mitigation assemblies which are symmetrically arranged in the longitudinal direction of the bridge surface. Each main seismic mitigation assembly comprises a spherical supporting seat, a transverse damper for transverse energy consumption and a longitudinal damper for longitudinal energy consumption, wherein the spherical supporting seat is internally provided with a shearing force piece. The large-scan bridge seismic mitigation and isolation system has the advantages that longitudinal and transverse seismic mitigation of a bridge is achieved, and the anti-seismic performance requirement of the bridge is met.

Description

technical field [0001] The invention relates to the field of vibration reduction and isolation of bridges, in particular to a large-span bridge vibration reduction and isolation system. Background technique [0002] Earthquake is a serious natural disaster faced by human society. According to statistics, an average of about 5 million earthquakes occur on the earth every year, among which, destructive earthquakes above magnitude 5 account for about 1,000 times. In addition to causing casualties, earthquakes also bring huge economic and property losses to human beings. Most cities are threatened by earthquakes. As a lifeline project, long-span bridges generally cannot collapse during earthquakes, so measures must be taken to improve the seismic performance of bridges. In order to solve the above technical problems, in high-intensity earthquake areas, long-span bridges generally adopt seismic isolation systems between the bridge girder body and bridge piers. In this case, th...

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
IPC IPC(8): E01D19/00E01D19/04
CPCE01D19/00E01D19/046
Inventor 孔令俊曹志峰张银喜郝红肖宁响亮
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap