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

Method for measuring internal force of guy cable in active service and measuring device using same

A measuring method and technology of measuring device, applied in tension measurement and other directions, can solve the problems affecting the calculation accuracy of cable force, etc., and achieve the effects of fast measurement speed, high measurement accuracy, and improved measurement accuracy

Active Publication Date: 2009-09-16
GUANGZHOU CONSTR ENG +1
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the frequency method is almost the best choice when measuring the cable force of the cable that has been constructed, but the accuracy of the cable force determined by the frequency method depends to a large extent on the reliability of the parameters of the cable itself (such as cable The bending stiffness of the cable, the calculated length of the cable, the linear density of the cable, etc.), the deviation of each parameter will affect the accuracy of the calculation of the cable force

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
  • Method for measuring internal force of guy cable in active service and measuring device using same
  • Method for measuring internal force of guy cable in active service and measuring device using same
  • Method for measuring internal force of guy cable in active service and measuring device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] An embodiment of a method for measuring the internal force of a cable in service of the present invention is introduced below. The method includes the following steps: (1) select two points on the cable to be measured, and fix the two points so that the distance between the two points (2) Select a point on the cable section to be tested between the two points, lift up the point by a height δ, measure the height δ and the required height for jacking up the height Jacking force N; (3) According to the height δ, the jacking force N and the distance L between the two points, using the stress stiffening effect of the cable and the principle of static force balance, more specifically, according to the formula T = N sin ( δ / L 1 ) + [ ...

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 method for measuring internal force of a guy cable in active service, which comprises the following steps: selecting two points on a guy cable to be measured, and fixing the two points so that a cable section to be measured between the two points is formed into a string pattern; selecting a point on the cable section to be measured between the two points, jacking a height at the point, and measuring the height and the jacking force required for jacking the height; and according to the height, the jacking force and the distance between the two points, using the stress rigidization effect of the guy cable and a principle of statical equilibrium to evaluate the internal force of cable section to be measured. The method has the advantages of convenient measurement, high precision and low measuring cost. The invention also provides a measuring device using the method.

Description

technical field [0001] The invention relates to a measuring method and a measuring device for the internal force of a cable, in particular to a measuring method and a measuring device for the internal force of a cable in service. Background technique [0002] Modern architecture constantly puts forward new standards and requirements for building functions. The scale, system, type, structure, and materials of building structures are constantly developing with changes in functions. Various cable-stayed bridges, suspension bridges, suspension structures, and cable-membrane structures Isotonic structures continue to emerge and develop. Due to various construction errors and accidental factors, the internal force and shape of the structure after completion often deviate from the design state, and various environmental effects during the service period often cause the internal force and shape of the structure in service to deviate from the design state. Tensile structures are gen...

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): G01L5/04
Inventor 刘金刚王龙谢庆华谢伟锋冯伟
Owner GUANGZHOU CONSTR ENG
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