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

Novel longitudinal restraint system

A longitudinal and systematic technology, applied in bridge parts, bridges, buildings, etc., can solve the problems of large maintenance workload, easy damage, and inability to install rail expansion adjusters, so as to avoid frequent maintenance and replacement work in the later period. , reasonable structure, novel concept effect

Pending Publication Date: 2018-02-16
CHINA RAILWAY DESIGN GRP CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the line is a curve, the rail telescopic adjuster cannot be installed. At the same time, the rail telescopic adjuster has a large maintenance workload and is easily damaged

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
  • Novel longitudinal restraint system
  • Novel longitudinal restraint system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below, the present invention is described in detail with reference to accompanying drawing and embodiment:

[0025] Such as figure 1 , 2 As shown, a new type of longitudinal restraint system includes a main girder structure and bridge piers under the main girder structure. Limiting device 3 in the middle of the whole beam.

[0026] In the present invention, the expansion and contraction zero point 1 is set in the middle of the whole beam, which reduces the temperature expansion and contraction of the beam end.

[0027] The main beam structure is a continuous beam or simply supported beam.

[0028] The whole beam adopts movable supports, and the longitudinal movement of the beam body is not restricted. The longitudinal movement of the beam body is limited by the limit device 3 .

[0029] The main beam structure may be a concrete beam or a steel beam.

[0030] When the main girder structure is a continuous beam, the main girder structure includes a main girder side ...

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 present invention discloses a novel longitudinal restraint system, comprising a main girder structure and a pier under the main girder structure. Girders of the main girder structure adopt movablesupports. The pier top of the pier is provided with a limit device which makes a telescopic zero point be positioned at the middles of the girders. The novel longitudinal restraint system adopts themethod of controlling the temperature deformation zero position, the temperature span of the beam structure is reduced, and the novel longitudinal restraint system can replace a rail expansion regulator under certain conditions, so that the problem that the rail expansion regulator cannot be arranged when a line is curved is solved. The novel longitudinal restraint system is long in service life,so that frequent post-maintenance and replacement of the rail expansion regulator are avoided. The novel longitudinal restraint system provides a new solution for a long-span railway beam when the temperature span is too large and the track stress does not meet the requirement. The novel longitudinal restraint system is reasonable in structure, novel in concept, good in comprehensive economy and high in practicability, and has a broad application prospect.

Description

technical field [0001] The invention belongs to a restraint system, in particular to a novel longitudinal restraint system. Background technique [0002] When the temperature span of the railway concrete continuous beam is greater than 200m, and the temperature span of the steel beam is greater than 100m, according to the force requirements of the track, it is necessary to install a rail expansion regulator. But when the line is a curve, the rail telescopic adjuster cannot be arranged, and at the same time, the rail telescopic adjuster has a large maintenance workload and is easily damaged. Contents of the invention [0003] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a novel longitudinal restraint system. [0004] The technical solution of the present invention is: a novel longitudinal restraint system, including a main girder structure and a pier under the main girder structure, the entire girder of 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): E01D1/00E01D19/00
CPCE01D1/00E01D19/00
Inventor 王祯苏伟张雷张上季伟强
Owner CHINA RAILWAY DESIGN GRP CO LTD
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