All-welded steel truss aqueduct erecting method

A steel truss girder and aqueduct technology, which is applied in the field of all-welded steel truss girder aqueduct erection, can solve the problems of long construction period, large amount of steel structure, steel truss girder aqueduct cannot be erected by floating crane and jacking method, etc. Achieve the effect of reducing construction cost, precise segment position, and reducing the number of cranes

Inactive Publication Date: 2020-09-01
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The steel truss girder aqueduct cannot be erected by floating crane or jacking method. If a conventional crane is used for erection, a steel truss girder transportation channel needs to be erected on the foundation pit, and the amoun...

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
  • All-welded steel truss aqueduct erecting method
  • All-welded steel truss aqueduct erecting method
  • All-welded steel truss aqueduct erecting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] It should be noted that the embodiments in the invention and the features in the embodiments can be combined with each other if there is no conflict.

[0026] In the description of the invention, it should be understood that the terms "center", "vertical", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention The creation and simplification of the description does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating...

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 all-welded steel truss aqueduct erecting method. The method comprises the steps that steel truss sections are symmetrically erected from the two ends to the middle of a mainspan through a crawler crane; main piers and foundations are constructed while erecting the side span aqueduct, and mid-span temporary buttresses are erected; after the aqueduct is adjusted in place,the main piers, the side piers, the temporary buttresses close to the closure section and the steel beams are tightened; and the crawler crane enters an aqueduct hoisting steel truss closure section,the aqueduct plane position is rechecked, then an aqueduct accessory structure is constructed, temporary buttresses are removed, a foundation pit is excavated or backfilled to a planned riverbed surface, and construction is completed. According to the construction method provided by the invention, the steel truss is erected from the two ends to the midspan, main piers and foundations can be synchronously constructed in the erecting period of the side span aqueduct, and the two aqueducts can share two crawler cranes, so that the number of cranes is reduced, and the construction cost is reduced;temporary buttresses are arranged near the connecting positions of the steel truss sections, each section is ensured to be provided with two supporting points, and the positions of the sections can be rapidly and accurately adjusted.

Description

Technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a method for erecting a fully welded steel truss girder aqueduct. Background technique [0002] An aqueduct, also known as a viaduct, is a group of water delivery systems composed of bridges, tunnels or ditches. The structure of the steel truss aqueduct is similar to that of the steel truss bridge, and the construction method is basically the same. The steel truss bridge is more widely used. High-strength bolts are often used for construction site connection of steel truss beams. Single rods can be assembled directly on site, or the rods can be welded into units at the processing plant, and truss beam units can be assembled on site; site connections can also be welded, which is relatively more applicable less. There are many ways to erect steel truss, such as: floating crane erection through the whole hole. This method can reduce high-altitude operations and r...

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): E01D21/00E01D18/00
CPCE01D18/00E01D21/00
Inventor 宋伟俊刘长辉龚国锋陈宁贤曲江峰董福歧付建胜霍艳雷王旭东蔡文焘李明泽张静章耀林朱林达冯文园朱永盛
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap