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

Cable-stayed bridge steel box girder closure method and closure system

A technology for a steel box girder and a cable-stayed bridge is applied in the field of a steel box girder closing method and a closing system of a cable-stayed bridge, and can solve the problems such as the jamming of the closing opening, the uneven edges of the steel box girder, and the complicated procedures, and save the counterweight. time, the effect of reducing production requirements

Inactive Publication Date: 2020-01-03
CHINA RAILWAY BRIDGE SCI RES INST LTD +1
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The matching and cutting process of steel box girders is relatively cumbersome, and the steel box girders that are matched and cut on site are prone to uneven edges and jamming at the Helongkou

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
  • Cable-stayed bridge steel box girder closure method and closure system
  • Cable-stayed bridge steel box girder closure method and closure system
  • Cable-stayed bridge steel box girder closure method and closure system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0053] see figure 1 As shown, the embodiment of the present invention provides a method for closing a steel box girder of a cable-stayed bridge, which includes the following steps:

[0054] Firstly, the steel box girder 1 of the closing section is prefabricated in the factory according to the measured temperature and the spacing of the closing section 2. To make the length of the steel box girder 1 of the closing section, it is only necessary to consider the size of the closing section 2 at a reference temperature of 15 degrees to ensure that the closing section The length of the steel box girder 1 should be made shorter than the length of the closing mouth 2 at the reference temperature, so that the steel box girder 1 of the closing section can be hoisted to the closing mouth 2 smoothly. The embodiment of the present invention does not need to...

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

PropertyMeasurementUnit
Weld widthaaaaaaaaaa
Weld widthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a cable-stayed bridge steel box girder closure method and closure system. The cable-stayed bridge steel box girder closure method comprises the following steps of pushing and opening the width of a first steel box girder closure opening through a pushing device arranged on a first steel box girder, wherein the width of the closure opening is the sum of the width of a closure section steel box girder and the operation width; hoisting the closure section steel box girder to the closure opening; adjusting elevations and axes of the first steel box girder and a second steelbox girder at the two ends of the closure opening; aligning the first steel box girder and the second steel box girder with the two sides of the closure section steel box girder; adjusting a connecting line between the first steel box girder and the second steel box girder to be parallel to the longitudinal bridge direction; arranging the pushing device on the first steel box girder; calculatingand obtaining a first pushing force by using a preset algorithm; enabling the pushing device to apply the first pushing force to the first steel box girder and push the first steel box girder to movein the longitudinal bridge direction; and correspondingly welding the two ends of the closure steel box girder to the first steel box girder and the second steel box girder.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a method and system for closing a steel box girder of a cable-stayed bridge. Background technique [0002] Because a lot of preparatory work is required before the closure of the cable-stayed bridge, including system conversion, comparison of the bridge closure state and the design state, etc., and after the bridge closure, it is difficult to adjust the overall state of the bridge, so the cable-stayed bridge Steel box girder closing is considered to be the most important construction procedure of bridge construction. [0003] At present, the steel box girder closure of cable-stayed bridges mainly adopts the counterweight method and the forced locking method of the bridge deck behind the crane on both sides of the bridge. Due to the counterweight method, when the steel box girder is closed, water tanks or sandbags of the same weight shall be configured according to the weight o...

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): E01D21/00E01D21/06E01D2/04E01D11/04
CPCE01D2/04E01D11/04E01D21/00E01D21/06
Inventor 程辉周杰钟继卫叶仲韬彭旭明梅秀道王波王亚飞史雪峰郭翠翠王鸣辉胡俊亮王胡鹏李明周浩王金霞张越
Owner CHINA RAILWAY BRIDGE SCI RES INST LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com