Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Improved stay cable equivalent tensioning method construction method based on deformation control

A deformation control and construction method technology, applied in the direction of erecting/assembling bridges, bridges, buildings, etc., can solve the problems of construction accuracy and control process need to be improved, and achieve the effect of abundant test data, short time consumption, and stress monitoring.

Pending Publication Date: 2022-04-12
CCCC SHEC FIRST HIGHWAY ENG
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing equivalent tensioning method still has certain defects in the initial tension calculation and stress monitoring during the construction process. Due to the discrete and creep characteristics of the cable itself, the existing equivalent tensioning method Construction accuracy and control process need to be improved

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
  • Improved stay cable equivalent tensioning method construction method based on deformation control
  • Improved stay cable equivalent tensioning method construction method based on deformation control
  • Improved stay cable equivalent tensioning method construction method based on deformation control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0075] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes onl...

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 an improved stay cable equivalent tension method construction method based on deformation control, which comprises the following steps: S1, performing a tension test on a single steel strand, taking a plurality of steel strands in the same batch, performing the tension test on the steel strands, and recording a stress-strain relation curve in a loading process, determining proportional limit stress at the end of the linear elastic section according to the stress-strain relation curve; s2, carrying out first-time tensioning calculation, and determining overall deformation parameters of the stay cable tensioning structure; s3, secondary tensioning calculation is conducted, specifically, the initial tensioning force of the control steel strand is calculated according to the overall deformation parameters of the stay cable tensioning structure; and S4, an improved equivalent tensioning method construction process based on deformation control is carried out, and the equivalent tensioning method construction process of stay cable final tension monitoring based on deformation control is provided by taking an equivalent tensioning method as the basis and combining accurate initial tensioning force calculation and deformation monitoring in the construction process.

Description

technical field [0001] The invention relates to the technical field of cable-stayed cable construction, in particular to an improved cable-stayed cable equivalent tensioning construction method based on deformation control. Background technique [0002] As a complex structural system composed of cable towers, main girders, and cable-stayed cables, cable-stayed bridges have the outstanding advantages of reducing building height, reducing structural weight, and saving building materials. They are widely used in bridge engineering. , is used as the main bridge type of long-span bridges. Among them, the stay cables, as the main tension components, are of great significance to the safety, stability and performance of the overall structure. Due to the prestressed stay cables, there is a construction process of pre-tensioning, and the process operation is complicated. Multiple stay cables The uneven stress will affect the effectiveness of the stay cable. [0003] Relevant scienti...

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): E01D21/00
Inventor 刘盛林杨志华赵顺利李张刘畅于修斌周健
Owner CCCC SHEC FIRST HIGHWAY ENG
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
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