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

Steel truss arch bridge arch rib and main beam mounting method

An installation method and technology of steel trusses, applied in the direction of erecting/assembling bridges, arch bridges, bridges, etc., can solve the problems of high construction cost, increased safety risks, long construction period, etc., and achieve the effect of saving construction equipment and construction period

Pending Publication Date: 2021-10-15
NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD +1
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This construction method of arch-climbing crane has the following disadvantages: ①The arch-climbing crane only installs the steel arch. The main beam is installed in the middle of the span, and the construction period is longer
②The installation of the entire bridge requires two large-scale equipment, the climbing arch crane and the bridge deck crane, and the construction cost is very high
③ There is a long time lag between the installation of the boom on the arch-climbing crane and the connection between the main girder and the boom. At this stage, the boom is in a free state at the lower end and is difficult to fix. It is greatly affected by wind load and affects the structure during construction. Overall stability, increased security risk

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
  • Steel truss arch bridge arch rib and main beam mounting method
  • Steel truss arch bridge arch rib and main beam mounting method
  • Steel truss arch bridge arch rib and main beam mounting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present disclosure will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations to the present disclosure, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present disclosure.

[0041] An embodiment of the present disclosure provides a steel truss arch bridge arch rib and a main girder installation method, including the following steps:

[0042] see figure 1 , Step 1, constructing two side spans of the steel truss arch bridge, the two side spans are opposite.

[0043] Specifically, Step 1 is as follows: constructing the main girder and lower chord of each side span of the steel truss arch bridge; installing the upper chord of the first section after the side span falls to the main fulcrum of the pier;...

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 a steel truss arch bridge arch rib and main beam mounting method, relates to the technical field of bridge construction, and aims to realize mounting of an arch rib and a main beam at the same time and save the construction period and construction equipment. The method comprises the following steps that firstly, two side spans of the steel truss arch bridge are constructed, and the two side spans are symmetrically constructed; secondly, an arch climbing crane is installed on each side span; thirdly, the two sets of arch climbing cranes gradually hoist the steel arch rod pieces from the side spans to the middle spans of the two sets of arch climbing cranes, and installation is completed till the steel arch rod pieces are folded; and fourthly, the two sets of arch climbing cranes symmetrically construct suspenders and main beams from the middle span to the side spans. According to the method of the invention, the arch rib and the main beam can be simultaneously mounted by adopting the arch climbing crane, so that one machine has two purposes, construction equipment is saved, and the construction period is shortened.

Description

technical field [0001] The present disclosure relates to the field of bridge construction, in particular to a steel truss arch bridge arch rib and a main girder installation method. Background technique [0002] Long-span steel arch bridges generally adopt the construction method of arch first and girder later. The steel arch can be installed by cantilever method, and cable crane or climbing arch crane is usually used for cantilever erection. [0003] The erection of steel arches using arch climbing cranes is generally divided into the following steps: ① Carry out side span construction and install arch climbing cranes. ②The steel arch is assembled with the cantilever of the arch-climbing crane, the buckle tower is installed after the arch-climbing crane passes the side span, and the anchor cable is installed and tensioned when the cantilever is assembled to the corresponding position to ensure the force and stability of the cantilever construction. The boom construction is...

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): E01D21/00E01D21/10E01D4/00E01D19/00
CPCE01D21/00E01D21/10E01D4/00E01D19/00
Inventor 李业勋赵辉赵云鹏霍振东刘小港吕艳涛罗浩杨鑫尹燎原
Owner NO 2 ENG CO LTD OF CCCC THIRD HARBOR ENG 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