Device and method for recognizing damage to bridge stay cable

A technology for damage identification and stay cables, applied in the direction of material magnetic variables, etc., can solve the problems of complex and bulky structure of bridge stay cable identification devices, and achieve the effects of easy magnification and subsequent analysis, easy operation and portability, and simple and lightweight structure.

Inactive Publication Date: 2013-04-17
CHINA RAILWAY BRIDGE SCI RES INST LTD +1
View PDF9 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to solve the problem that the structure of the bridge stay cable damage identification device is complex and heavy

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
  • Device and method for recognizing damage to bridge stay cable
  • Device and method for recognizing damage to bridge stay cable
  • Device and method for recognizing damage to bridge stay cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 , figure 2 As shown, the bridge stay cable damage identification device provided by the present invention includes an iron plate 1, two magnets 2 and a signal analyzer 5.

[0023] The bottom surface of the iron plate 1 is fixedly provided with a copper coil 3, and two magnets 2 are arranged on the bottom surface of the iron plate 1 at intervals, and the copper coil 3 is located at the center of the line connecting the two magnets 2, the iron plate 1, the two magnets 2 Composed of a signal acquisition device with the copper coil 3, the copper coil 3 is connected to the signal analyzer 5, and the magnetic flux of the copper coil 3 is collected in real time by the signal analyzer 5 and converted into a voltage display.

[0024] In the above scheme, the size of the iron plate 1 is 120mm×40mm×10mm, the shape of the magnet 2 is disc shape, the di...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a device and a method for recognizing damage to a bridge stay cable. The device comprises an iron plate, two magnets and a signal analyzer, wherein a copper coil is fixedly arranged on the bottom surface of the iron plate; the two magnets are arranged on the bottom surface of the iron plate at an interval; the copper coil is located at the center of the connection line between the two magnets; and the signal analyzer is used for real-timely collecting and displaying magnetic flux of the copper coil. The invention provides an optimized structure scheme for detecting damage to the bridge stray cable according to a magnetic flux leakage detection principle. The device provided by the invention is simple in structure, convenient and easy to operate and carry, and can improve the magnetic flux leakage detection sensitivity by replacing the conventional Hall sensor by the coil, thereby facilitating signal amplification and subsequent analysis.

Description

technical field [0001] The invention relates to a non-destructive testing device, in particular to a bridge cable damage identification device and method. Background technique [0002] Cable-stayed bridges have a greater spanning capacity than girder bridges, and are one of the most popular types of long-span bridges in my country. So far, hundreds of cable-stayed bridges of various types have been built, making it the country with the most cable-stayed bridges. [0003] The cable-stayed cable is the main load-bearing part of the cable-stayed bridge, and it is in a very critical and core position, and its construction cost accounts for one-fourth to one-third of the total bridge construction cost. During the long-term operation of a cable-stayed bridge, due to various reasons such as overloading, fatigue, and damage to the external sheath, the cable-stayed cables may be damaged to varying degrees, such as broken wires and corrosion. The main form of damage is the cable Chan...

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): G01N27/83
Inventor 汪正兴王波王翔柴小鹏黄清荆国强刘鹏飞蔡欣袁立宏
Owner CHINA RAILWAY BRIDGE SCI RES INST LTD
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