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

Seamless expansion joint structure

An expansion joint and seamless technology, applied in the field of bridge expansion joints, can solve the problems of steel expansion joints such as water leakage, poor driving smoothness, and high maintenance costs, and achieve the effects of improving driving comfort, preventing cracking, and high aesthetics

Pending Publication Date: 2019-08-27
中铁二十三局集团建筑设计研究院有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies that the existing seamless expansion joints can only satisfy a relatively small displacement and deformation, and the steel expansion joints that can meet a relatively large deformation are prone to water leakage, poor driving comfort, and high maintenance costs, and provide A seamless expansion joint structure

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
  • Seamless expansion joint structure
  • Seamless expansion joint structure
  • Seamless expansion joint structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 1-2 As shown, a seamless expansion joint structure according to the present invention includes expansion joints 2 between two adjacent beam bodies 1, preferably, the width of the expansion joints 2 is 40mm-240mm, and each of the The beam body 1 is provided with a pavement layer 11, and a reserved notch is provided between two adjacent pavement layers 11, and also includes a cover plate 3 arranged on the expansion joint 2, and the cover plate 3 A telescopic member is arranged above, and the telescopic direction of the telescopic member is along the longitudinal direction of the bridge. The elastic-plastic body 4 is filled in the reserved slot, and the top surface of the elastic-plastic body 4 is flush with the top surface of the pavement layer 11. Flat, the elastic-plastic body 4 is a TST structural member, and the TST structural member is a member formed by a mixture of binder and aggregate. Preferably, the size of the telescopic member is adapted to the...

Embodiment 2

[0047] Such as Figure 4 As shown, a seamless expansion joint structure according to the present invention, its structure is roughly the same as that of Embodiment 1, the difference is that all the corrugated plates 6 can be replaced by steel corrugated pipes 7, each The cross-sectional shape of bellows 7 can be circular, elliptical and such as this Figure 4 The approximate elliptical cross-sectional shape, the setting direction of the bellows 7 can be as Figure 4 As shown, that is, the pipe wall of each bellows 7 is connected to the partition 5 or connected to the wall of the adjacent bellows 7 through a connecting piece, and the hollow pipe body is stretched or compressed to deform by pulling and pressing; Certainly, the axial direction of the bellows 7 can also be set along the longitudinal bridge direction, that is, the two ends of each section of the bellows 7 are connected to the two adjacent partitions 5 respectively, and each partition 5 is still provided with The ...

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 seamless expansion joint structure. The seamless expansion joint structure includes an expansion joint between two adjacent beam bodies, pavement layers are arranged on the beam bodies, a pre-reserved groove is formed between the two adjacent pavement layers; the seamless expansion joint structure further includes a covering plate arranged on the expansion joint, an expansion component is arranged on the upper part of the covering plate, the pre-reserved groove is filled with elastic-plastic bodies, and the top faces of the elastic-plastic bodies are flush with the top faces of the pavement layers. According to the seamless expansion joint structure, a bridge deck is smooth and seamless, automobile jumping is effectively avoided, driving comfort is improved, waterand waste can be prevented with high attractiveness, the cracking of the elastic-plastic bodies in the process of transformation can be prevented, and the impact of traffic loads to a bridge expansion joint is reduced; due to the fact that the seamless expansion joint structure can be applied in demands for larger expansion deformation, so the seamless expansion joint structure can be applied inlarge and middle scale bridges; and the structure is simple, the installation is convenient, the construction efficiency can be effectively improved, the service life is long, and the maintenance costis low.

Description

technical field [0001] The invention relates to the technical field of bridge expansion joints, in particular to a seamless expansion joint structure. Background technique [0002] In order to prevent the expansion and deformation requirements of the beam body and bridge deck caused by factors such as temperature changes, concrete shrinkage and creep, and live loads, and to ensure the smooth passage of vehicles, expansion joints are usually set between the ends of the two beams. The structure is the most vulnerable to damage and is located in the part that is difficult to maintain. Therefore, if the selection and design of the expansion device are unreasonable, it is easy to cause damage to the expansion joints of the bridge, which will affect the driving safety and the service life of the bridge. [0003] In the prior art, on large and medium-span bridges, the demand for expansion is relatively large, such as greater than 80mm, and steel expansion joints are usually used. A...

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): E01D19/06
CPCE01D19/06
Inventor 魏运鸿孙春平毕小毛吴波王涛冉庆国袁茂林阳旭
Owner 中铁二十三局集团建筑设计研究院有限公司
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