Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Combined multi-level three-way seismic bridge limit device based on brb technology

A limit device and combined technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of inconspicuous effect and few three-way limit devices, and achieve excellent limit performance, low cost, and poor solution performance good effect

Active Publication Date: 2022-08-02
SHIJIAZHUANG TIEDAO UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are very few studies on the three-way limit device of bridges in my country, and the research mainly focuses on the simple one-way limit device, but the effect is not obvious

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
  • Combined multi-level three-way seismic bridge limit device based on brb technology
  • Combined multi-level three-way seismic bridge limit device based on brb technology
  • Combined multi-level three-way seismic bridge limit device based on brb technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] like Figure 1-9 As shown in the figure, a combined multi-stage three-way anti-seismic bridge limiting device based on BRB technology of the present invention includes a beam body 7 and a bridge pier 8, and a plate rubber bearing 9 and a bearing are arranged between the beam body 7 and the bridge pier 8 Cushion 10, such as Figure 1-3 As shown in the figure, the combined multi-level three-way seismic bridge limiting device is composed of two sets of buckling restraint support structures 1 arranged in a V-shaped arrangement, a limit sliding connection assembly 3 , a spherical hinge 2 and an annular limit cable 5 . like Figure 4-6As shown, the buckling restraint support structure 1 includes a connecting part 1e, an angle steel 1d, a support inner core 1a, and an outer steel pipe 1b, the space between the support inner core 1a and the outer steel pipe 1b is filled with mortar or concrete 1c, and the two ends of the support inner core 1a are respectively provided with Th...

Embodiment 2

[0060] In the present invention, a combined multi-stage three-way seismic-resistance bridge limiting device based on BRB technology, two sets of buckling restraint support structures 1 are arranged in an inverted V shape along the longitudinal bridge direction, that is, two spherical hinges 2 are arranged adjacent to each other. At the bottom of the beam 7, the two limit sliding connection components 3 are dispersedly arranged on the upper end of the side wall of the bridge pier 8, and the included angle formed by the two buckling restraint support structures 1 is 90°. The connection modes of other parts are the same as those in Embodiment 1, and are not repeated here.

Embodiment 3

[0062] In the present invention, a combined multi-stage three-way seismic-resistance bridge limiting device based on BRB technology adopts bridge abutments instead of bridge piers 8 , and sets two buckling restraint support structures 1 and annular limiting cables 5 at the lower end of beam body 7 between the front wall of the abutment. The connection modes of other parts are the same as those in Embodiment 1, and are not repeated here.

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 relates to a combined multi-stage three-direction seismic bridge limiting device based on BRB technology. The device includes a beam body and a bridge pier, and includes two sets of buckling restraint support structures arranged in a V-shape, a limit sliding connection component, and a spherical hinge. And the ring limit cable. The two ends of the buckling restraint support structure are respectively connected with spherical hinges and rigid smooth spheres. In the case of small displacement of the beam body, the rigid smooth spheres slide relatively freely in the channel of the limit sliding connection component; when the beam body has a large earthquake displacement , the buckling-constrained support structure consumes seismic energy through elastic-plastic deformation. The annular limit cable plays a limiting role after the buckling restrained support structure fails in tension. According to the anti-seismic concept of multi-level fortification, the invention combines the technology of traditional buckling restraint support structure and cable stopper, which can effectively limit the displacement of the beam body under longitudinal, lateral and vertical earthquake vibration, and has a simple and reliable structure.

Description

technical field [0001] The invention relates to a combined multi-level three-way anti-seismic bridge limiting device based on BRB technology, belonging to the technical field of bridge anti-seismic and bridge seismic isolation. Background technique [0002] In recent years, many strong earthquakes have occurred in the world, causing serious damage to human life and property. The seismic problem of bridges has become the focus of attention in the engineering field. For cross-fault or near-fault bridges, due to the complex fault rupture process, the permanent displacement of the surface rupture is difficult to predict, and the bridge may be subjected to seismic forces from all directions in the longitudinal, lateral and vertical directions. [0003] At present, there are very few studies on the three-way limit device of bridges in my country. The research mainly focuses on the simple one-way limit device, but the effect is not obvious. Therefore, combined with the principle ...

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 Patents(China)
IPC IPC(8): E01D19/00E01D19/02E01D19/04E01D21/00F16F15/02F16F15/04
CPCE01D19/00E01D19/02E01D19/041E01D21/00F16F15/02F16F15/04
Inventor 王军文王昌鹏高荣澳刘丽杰彭涛郭进
Owner SHIJIAZHUANG TIEDAO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com