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One-dimensional coaxial reinforced concrete member measuring device and method based on equivalent circuit

A technology of reinforced concrete and measuring equipment, applied in the field of building material testing and concrete quality monitoring

Inactive Publication Date: 2016-09-28
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention is mainly limited to the detection of concrete cracks, and does not detect other abnormal behaviors, so there are limitations

Method used

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  • One-dimensional coaxial reinforced concrete member measuring device and method based on equivalent circuit
  • One-dimensional coaxial reinforced concrete member measuring device and method based on equivalent circuit
  • One-dimensional coaxial reinforced concrete member measuring device and method based on equivalent circuit

Examples

Experimental program
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Effect test

Embodiment 1

[0089] Example 1. See attached figure 1 , 3 .

[0090]The outer conductor of the circular one-dimensional coaxial reinforced concrete member is composed of circular stirrups 2-1-2-n and longitudinal bars 3-1-3-m. The inner conductor 1 is composed of circular stirrup longitudinal bars similar in structure to the outer conductor, but the diameter of the circular stirrup is smaller than that of the outer conductor circular stirrup, and the inner conductor is located at the axial center inside the reinforced concrete member.

[0091] For circular one-dimensional coaxial reinforced concrete, the outer diameter r of the inner conductor is equal to the inner diameter R of the outer conductor divided by 10 to the xth power, that is: r=R / 10 x

[0092] Elliptical one-dimensional reinforced concrete members are similar to circular one-dimensional reinforced concrete members, except that the stirrups are elliptical. For elliptical one-dimensional coaxial reinforced concrete, let the ...

Embodiment 2

[0094] Example 2. See attached figure 2 , 3 .

[0095] For a square one-dimensional coaxial reinforced concrete member, let the side length of the outer conductor be LN, and the side length of the outermost circle of the inner conductor be l; then l is equal to LN divided by 10 to the xth power,

[0096] Namely: l=LN / (10 x ).

[0097] For a rectangular one-dimensional coaxial reinforced concrete member, let the length of the outer conductor be Y, the width be W, the length of the inner conductor be y, and the width be w. Then y is equal to Y divided by 10 to the xth power, and w is equal to W divided by 10 to the xth power

[0098] Namely: y=Y / (10 x ); w=W / (10 x ).

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Abstract

The invention discloses a one-dimensional coaxial reinforced concrete member measuring device and method based on an equivalent circuit. An equivalent circuit measuring device and an inner conductor and an outer conductor of a detected one-dimensional coaxial reinforced concrete member jointly complete measuring. The equivalent circuit measuring device is composed of a control server, a microprocessor, a signal source, power dividers, reverse signal isolators, measuring connection ports, directional couplers, programmable attenuators, signal analyzers and a switch circuit and connected to the two ends of the detected one-dimensional coaxial reinforced concrete member through the two ends of each connection cable. When measuring is conducted, the control process is completed through control of the control service over the microprocessor, and the diseased state of one-dimensional coaxial reinforced concrete is conveniently and accurately speculated and monitored through a parameter calculation subprogram membrane equivalent circuit model of the microprocessor. According to the device and method, a concrete material is utilized as a sensing material, the automation degree of equivalent circuit model measuring and calculating is high, operation is easy and reliable, and popularization is easy.

Description

(1) Technical field [0001] The invention belongs to the category of building material detection and relates to concrete quality monitoring, in particular to a one-dimensional coaxial reinforced concrete member measuring device and method based on an equivalent circuit. (2) Background technology [0002] Concrete is the most widely used structural material in civil engineering structures. The damage of concrete structural materials will seriously damage the integrity of the structure, affect the durability of the structure, and even directly endanger the safety of the engineering structure. Therefore, the damage detection or monitoring of concrete materials is very important. An important part of engineering quality inspection and structural health monitoring. Real-time effective detection and real-time monitoring of concrete components, scientifically grasp the dynamic changes in the structural performance of concrete components, and timely take disaster prevention and contr...

Claims

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Application Information

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IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 莫思特杨森李碧雄王熙月苏其瑜柳银张展
Owner SICHUAN UNIV