Box girder positioning temporary supporting seat and positioning construction method of box girder

A technology of temporary support and construction method, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc. It can solve the problems of obvious shaking of the gondola, large error, and can only reach about 10 centimeters, so as to improve construction accuracy and ensure The effect of precise alignment

Active Publication Date: 2011-06-01
THE FOURTH ENG CO LTD OF CHINA ZHONGTIEMAJOR BRIDGE ENG GRP +1
View PDF2 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall erection of the box girder using cranes mainly has the following problems: the formal support of the simply supported box girder or the temporary support of the continuous box girder does not have the function of position adjustment, and the positioning of the box girder is adjusted b...

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
  • Box girder positioning temporary supporting seat and positioning construction method of box girder
  • Box girder positioning temporary supporting seat and positioning construction method of box girder
  • Box girder positioning temporary supporting seat and positioning construction method of box girder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The manner of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] Such as image 3 As shown, the box girder positioning temporary support 2 of the present invention includes a steel grit top 5, a base 9 below it and a steel backing plate 4 above it. Wherein, the steel grit top 5 also includes a cylinder 19 and a piston 14 matched therewith, the piston 14 is partly accommodated in the cylinder 19, the part below the piston 14 inside the cylinder 19 is filled with steel grit 6, the side wall of the cylinder 19 The lower end is provided with a quicksand nut 13 for releasing internal steel sand 6, and its side wall has an internally threaded through hole, and the quicksand nut 13 is screwed into the internally threaded through hole. The diameter can not be too large or too small, and the present embodiment selects steel grit with a standard diameter of 2mm. A steel backing plate 4 is laid on the top of th...

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 box girder positioning temporary supporting seat and a positioning construction method of a box girder. The supporting seat comprises a steel grit top, a base and a steel base plate, wherein the base is positioned below the steel grit top; the steel base plate is positioned above the steel grit top; the steel grit top comprises a cylinder body and a piston which is matched with the cylinder body; the cylinder body is arranged on a positioning supporting seat; a sliding friction pair is arranged between the positioning supporting seat and the base; a part of the cylinder body is filled with steel grit; and the steel base plate is spread on the top upper part of the piston. In positioning supporting seat-based box girder positioning construction method, the box girder is pre-compressed, so that the temporary support seat of the box girder is replaced by a permanent supporting seat. Based on initial erecting and positioning of a suspended working platform, the box girder is positioned accurately by the temporary supporting seat, so that scale height of a girder bottom and planar position deviation after the installation of the box girder are ensured and design and specification requirements are met. The invention has the characteristics that: the positioning temporary supporting seat and the positioning construction method are safe and reliable, are easy to operate and have high construction efficiency.

Description

technical field [0001] The invention relates to a temporary support used for precise positioning of the overall erection of a box girder in bridge construction, and a construction method for positioning the box girder using the support. Background technique [0002] With the increasing level of bridge construction in our country, more and more large-span and super-large-tonnage box girders are used in sea-crossing bridges. The box girder is generally erected as a whole by a large crane. Usually, the construction method for the overall erection of the box girder by a large crane is: the large crane lifts and transports the box girder. After the initial alignment, the box girder is directly installed on the simply supported box girder. Formal support or temporary support of simply supported and then continuous box girder. After the simply supported and then continuous box girders are connected, the wet joints on the pier tops are poured, and the temporary supports are removed...

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): E01D21/00
Inventor 鄢乃军杨春秦顺全潘军周东阮大坤李英林陈蛟晏维华
Owner THE FOURTH ENG CO LTD OF CHINA ZHONGTIEMAJOR BRIDGE ENG 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