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

A real-time elevation calculation method for the cpiii point of the track control network on the cable-stayed bridge

A technology of track control network and calculation method, applied in bridges, bridge materials, bridge construction, etc.

Active Publication Date: 2020-11-06
SOUTHWEST JIAOTONG UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective method for laying CPⅢ control network and laying ballastless track on long-span cable-stayed bridges in China.

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
  • A real-time elevation calculation method for the cpiii point of the track control network on the cable-stayed bridge
  • A real-time elevation calculation method for the cpiii point of the track control network on the cable-stayed bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 and figure 2 Shown, be the high-speed railway long-span cable-stayed bridge of 350km with certain design speed per hour as an example to illustrate the inventive method.

[0029] A method for calculating the real-time elevation of the track control network CPⅢ point on a cable-stayed bridge, comprising the following steps:

[0030] Step 1: Obtain the elevation change, atmospheric temperature, and concrete temperature of the CPⅢ point on the main bridge of the steel-concrete composite bridge cable-stayed bridge.

[0031] Various sensors such as temperature and displacement are installed in multiple parts of the main bridge body of the bridge to detect possible influencing factors such as the temperature of the main beam of the main bridge and the change of atmospheric temperature at any time, and provide basic paramete...

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 method for calculating the real-time elevation of the CPⅢ point of the upper track control network of a cable-stayed bridge, which comprises the following steps: Step 1: Obtain the elevation variation, atmospheric temperature and concrete temperature of the CPⅢ point on the main bridge of the steel-concrete composite bridge cable-stayed bridge ; Step 2: Establish the relationship between the elevation change and the CPⅢ point; Step 3: Establish the relationship between the environment-elevation change; Step 4: Obtain the combined model according to the relationship obtained in Step 2 and Step 3; Step 5: According to the step 4 The combined model obtained obtains the elevation variation of each CPⅢ point, and the real-time elevation value of the CPⅢ point can be obtained according to the elevation variation; The multi-valued problem of elevation.

Description

technical field [0001] The invention relates to the field of high-speed railway bridge construction, in particular to a real-time elevation calculation method for CPⅢ points of a track control network on a cable-stayed bridge. Background technique [0002] The long-span steel-concrete composite bridge cable-stayed bridge due to the influence of external environmental factors such as temperature, sunshine and load will lead to significant uneven transformation of the bridge structure, which will lead to the CPⅢ control point arranged on the middle span of the cable-stayed bridge. produce varying degrees of vertical displacement. Due to the multi-valued elevation of CPⅢ point, the construction of ballastless track slab laying and track fine adjustment on long-span cable-stayed bridges cannot be carried out. In order to ensure the successful laying of ballastless track on the bridge, it is necessary to grasp the vertical displacement and deformation law of the main girder of t...

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): E01D19/12E01D101/30E01D101/24
CPCE01D19/12E01D2101/24E01D2101/30
Inventor 杨雪峰曹成度刘成龙滕焕乐梁旺闵阳林远胡
Owner SOUTHWEST JIAOTONG 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