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

Arch-supported cable-stayed bridge beam vertical rotating and lowering closure method and bridge structure used in cooperation with same

A beam and closing technology, applied in the erection/assembly of bridges, bridges, bridge construction, etc., can solve problems such as hidden safety hazards, low efficiency, etc., and achieve the effect of improving assembly accuracy, increasing construction speed, and reducing use.

Inactive Publication Date: 2020-10-02
CHINA RAILWAY NO 3 GRP CO LTD
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for vertically turning and lowering the beam of an arch-supported cable-stayed bridge and a bridge structure used in conjunction with it, so as to improve the jacking construction of the existing arch-supported cable-stayed bridge mentioned in the above-mentioned background technology when crossing the existing line. The beam hoisting construction method causes safety hazards and low efficiency to existing lines

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
  • Arch-supported cable-stayed bridge beam vertical rotating and lowering closure method and bridge structure used in cooperation with same
  • Arch-supported cable-stayed bridge beam vertical rotating and lowering closure method and bridge structure used in cooperation with same
  • Arch-supported cable-stayed bridge beam vertical rotating and lowering closure method and bridge structure used in cooperation with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In this embodiment, "inner" refers to the direction toward the steel box girder 4, and "outer" refers to the direction toward the steel arch tower 5.

[0024] This embodiment provides a method for vertically turning and lowering the beam of an arch-supported cable-stayed bridge, including the following steps:

[0025] ①Steel beam processing and manufacturing, the steel beam is divided into three parts: the main beam connection section 1, the vertical closing section 2 and the arch tower connection section 3; 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 provides an arch-supported cable-stayed bridge beam vertical rotating and lowering closure method and a bridge structure used in cooperation with the same, whichbelong to the technical field of bridge construction.The bridge structure comprises a main beam-cross beam connecting structure and a beam-arch tower connecting structure; the main beam-cross beam connecting structure comprises a steel box main beam and main beam connecting sections prefabricated and welded to the two sides of the steel box main beam. The cross beam-arch tower connecting structures are located on the twosides of the main beam-cross beam connecting structure, and each cross beam-arch tower connecting structure comprises a steel arch tower, an arch tower connecting section welded with the steel arch tower into a whole and a vertical closure section hinged to the arch tower connecting section through a vertical rotating hinge. After the vertical closure section is subjected to arch tower closure andmid-span closure, the vertical closure section is lowered to be welded with the main beam connecting section; the main beam connecting sections, the vertical closure sections and the arch tower connecting sections on the two sides of the steel box main beam form a steel cross beam. The problems that when an existing arch-supported cable-stayed bridge is subjected to incremental launching construction and crosses an existing line, a beam hoisting construction method causes potential safety hazards to the existing line, and efficiency is low are solved.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and specifically discloses a method for vertically rotating and lowering the beam of an arch-supported cable-stayed bridge and a bridge structure used in conjunction with it. Background technique [0002] With the increasing perfection of expressways and high-speed railway networks, there are more and more bridge structures crossing each other. For conventional arch-supported cable-stayed bridges, the construction method of steel beams is often hoisting construction. The steel beams are hoisted by a crane and connected to the tower columns on both sides to form a whole, and then the steel box girders are constructed on the steel beams. However, when the arch-supported cable-stayed bridge is pushed across the existing railway line, the structure of steel box girders arranged on steel beams will affect the clearance under the bridge, which does not meet the requirements for the safety h...

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): E01D21/08E01D12/00
CPCE01D12/00E01D21/08
Inventor 常乃超刘小青褚晓晖刘志锋王勇刘伟洪亮姚家贵员利军刘国成唐仲林刘斌柴鑫高旭园耿晔易先坤李俊
Owner CHINA RAILWAY NO 3 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