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

Sensitivity analysis based dynamic construction control method for one-time tension of stay cables

A control method and technology of stay cables, which are applied in the fields of instruments, electrical digital data processing, computer-aided design, etc., can solve the problems of inability to control the construction process, low construction efficiency, structural stress damage, etc., and reduce the finite element analysis work. Quantity, simplify construction steps, improve the effect of structural stability

Active Publication Date: 2017-08-08
NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD +1
View PDF7 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cable system of the cable-stayed bridge is a high-order statically indeterminate structure. At present, the construction of this structural system basically adopts the method of gradual approximation for multiple tensions. Not only the construction efficiency is low, but also the construction process cannot be controlled. Cause the structure to be destroyed due to excessive stress in a certain construction stage; at the same time, due to the multiple redistribution of the internal force of the structure during construction, the actual internal force of the structure is no longer a reasonable value of the internal force of the bridge state

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
  • Sensitivity analysis based dynamic construction control method for one-time tension of stay cables
  • Sensitivity analysis based dynamic construction control method for one-time tension of stay cables
  • Sensitivity analysis based dynamic construction control method for one-time tension of stay cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0046] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "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 and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or 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 only, and should not be cons...

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 sensitivity analysis based dynamic construction control method for one-time tension of stay cables. The method comprises the following steps: a cable-stayed bridge completion time model is established with finite element software, the model is calculated with a finite element method, and tension import value of each stay cable is obtained; uncontrollable external factors are subjected to sensitivity analysis according to the established cable-stayed bridge completion time model; the sensitivity of each stay cable is determined through analysis according to the established cable-stayed bridge completion time model; multiple tension sequence schemes and corresponding tension force are predetermined according to stay cable sensitivity analysis results, the different tension sequence schemes are calculated with the finite element method, and the optimal tension sequence scheme is selected; construction is performed according to the optimal tension sequence scheme obtained through calculation, the tension force of each stray cable and a result about sensitivity analysis of the uncontrollable external factors. With adoption of the sensitivity analysis based dynamic construction control method for one-time tension of the stay cables, the stay cable construction process is simplified.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a dynamic construction control method for one-time tensioning of stay cables based on sensitivity analysis. Background technique [0002] As a cable system, the cable-stayed bridge has a larger spanning capacity than the girder bridge, and is the main type of long-span bridge with wide adaptability. [0003] The cable system of the cable-stayed bridge is a high-order statically indeterminate structure. At present, the construction of this structural system basically adopts the method of gradual approximation for multiple tensions. Not only the construction efficiency is low, but also the construction process cannot be controlled. The structure is destroyed due to excessive stress in a certain construction stage; at the same time, due to the multiple redistribution of the internal force of the structure during construction, the actual internal force of the structure ...

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): G06F17/50G06Q50/08
CPCG06F30/13G06F30/23G06F2119/06G06Q50/08
Inventor 郭福元王续胜彭慧肖俊陈和张科龙
Owner NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU 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