Construction method of bridge prestress continuous box girder

A construction method and prestressing technology, applied in bridges, bridge materials, bridge construction, etc., can solve problems affecting bridge quality and complexity, achieve good market prospects, less reinforcement, and eliminate influencing factors

Inactive Publication Date: 2020-04-21
江苏永联精筑建设集团有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing continuous box prestressed construction method is relatively complicated overall, and there are a large number of influencing factors in the entire construction process, which seriously affects the final quality of the bridge.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0024] The invention provides a construction method of bridge prestressed continuous box girder, the method is as follows:

[0025] (1) Foundation treatment;

[0026] If the foundation is located in a place that can meet the bearing capacity requirements, no foundation treatment is required; if the foundation is located in a soft soil area, the silty soil should be excavated first, and the permeable material should be replaced by layered backfill. After the filling is completed, compact it with a road roller, and then lay a gravel cushion and pour concrete.

[0027] (2), support erection and preloading;

[0028] Use a total station to release the center line of...

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 construction method of a bridge prestress continuous box girder. The construction method comprises the steps that a foundation is treated; erecting and pre-pressing of a bracket is carried out; a template is manufactured and installed; reinforcing steel bars, corrugated pipes and steel strands are installed; concrete construction is carried out, and box girder tensioning is carried out. The construction process provided by the invention is effectively simplified, original numerous influence factors are eliminated, the advantages of few reinforcing bars and light structure are achieved, the overall quality of subsequent bridges is guaranteed, a good market prospect is achieved, and the construction method is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a construction method of a bridge prestressed continuous box girder. Background technique [0002] Continuous box girder prestressing construction technology has the advantages of less reinforcement and light structure. Bridge structure has a wide range of applications. With the continuous development of prestressing theory, continuous box prestressing is widely used in concrete bridge structures. However, the existing continuous box prestressed construction method is relatively complex overall, and there are a large number of influencing factors in the entire construction process, which seriously affect the final quality of the bridge. [0003] Therefore, to develop a bridge prestressed continuous box girder construction method with simplified technology in view of the above problems is a difficult problem urgently needed by those skilled in the art. Co...

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): E01D2/04E01D21/00E01D101/28
CPCE01D2/04E01D21/00E01D2101/28
Inventor 吴惠许舟吴建冬陶江川
Owner 江苏永联精筑建设集团有限公司
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