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Intelligent brick device for monitoring damage degree of single wall and monitoring method thereof

A damage degree, monolithic wall technology, applied in measuring devices, using sonic/ultrasonic/infrasonic waves to analyze solids, and using sonic/ultrasonic/infrasonic waves for material analysis, etc. problems, to achieve a broad promotion market and application prospects, reduce the influence of circuit breakage factors, and increase the intensity of

Active Publication Date: 2019-10-22
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the damage detection of traditional masonry structures is not only time-consuming and laborious, but also restricted by on-site detection conditions, and it is impossible to conduct comprehensive inspections on some concealed projects.

Method used

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  • Intelligent brick device for monitoring damage degree of single wall and monitoring method thereof
  • Intelligent brick device for monitoring damage degree of single wall and monitoring method thereof
  • Intelligent brick device for monitoring damage degree of single wall and monitoring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1~8 As shown, a smart brick device for monitoring the damage degree of a single wall, including five smart bricks A, B, C, D, E;

[0031] Four square piezoelectric ceramic sheets 1 are respectively embedded in the smart brick A at an angle of 45° with the brick edge, and the piezoelectric ceramic sheets 1 are arranged in the vertical direction; The negative wires are respectively connected to the positive wire pinhole 5 and the negative wire pinhole 6; smart brick A can transmit stress wave signals to four directions at the same time; smart brick B, smart brick C, smart brick D and smart brick E are connected to bricks A piezoelectric ceramic sheet 1 is embedded at an angle of 45° between the side lines to receive signals; when the masonry structure is damaged, the propagation path of the stress wave signal emitted by smart brick A will change, compared with smart brick B and smart brick C , Smart Brick D and Smart Brick E receive the form of the stress...

specific Embodiment approach

[0040] The specific implementation is as follows: using mechanical mixing clay and steel fibers, put them into a mold with grooves, then, dry the bricks at 90°C for 6 hours and burn them at 900°C for 6 hours. There are several grooves of the same size on the square bricks mixed with steel fibers, and the number of grooves is determined according to the number of piezoelectric ceramic sheets to be embedded; after the square bricks are successfully manufactured, install positive and negative wires on the surface of the brick Pinhole, the position of the pinhole can be determined according to the position of the groove; square piezoelectric ceramic sheets with positive and negative wires are respectively embedded in the groove mouth, and the square piezoelectric ceramic sheets embedded in the groove need to be pretreated as follows: select a size smaller than The grooved square piezoelectric ceramic sheet is welded with positive and negative lead wires on the surface of the square...

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Abstract

The invention discloses an intelligent brick device for monitoring the damage degree of a single wall and a monitoring method thereof. The device includes five intelligent bricks. An intelligent brickA is embedded with four square piezoelectric ceramic chips, and the positive and negative wires of all the piezoelectric ceramic chips embedded into grooves are respectively connected into positive and negative wire pin holes. The intelligent brick A can simultaneously emit stress wave signals in four directions. Each of an intelligent brick B, an intelligent brick C, an intelligent brick D and an intelligent brick E is embedded with one piezoelectric ceramic chip for receiving signals. Each intelligent brick is composed of two parts: one is a slotted brick doped with steel fibers, and the other is a piezoelectric ceramic with a copper shielding shell installed inside. By making full use of high strength of the square bricks doped with steel fibers and good compatibility of the square bricks with the masonry structure, the influence of an intelligent brick sensor on a tested structure is reduced. The intelligent brick device has the advantages of inexpensive materials, simple structure and high applicability. A simple and feasible method is provided for damage monitoring of a single wall.

Description

technical field [0001] The invention relates to an intelligent brick device for monitoring the damage degree of a monolithic wall and a monitoring method thereof, in particular to an intelligent brick device based on piezoelectric ceramics and a method capable of real-time monitoring of the damage degree of a monolithic wall. It belongs to the field of masonry structures. Background technique [0002] Masonry structure is one of the oldest structural forms, and it is an important part of history, culture and residential buildings. However, due to the lack of daily maintenance, the seismic performance of masonry structures is insufficient, and the degree of damage is much higher than that of other structures. The recovery ability is extremely weak, and almost all collapsed. Therefore, it is very necessary to monitor and position the damage degree of masonry buildings in real time. When a monolithic wall is damaged, the propagation path of the stress wave changes, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04G01N29/22
CPCG01N29/04G01N29/22G01N2291/0231
Inventor 路国运赵泽赵云川岳琦张恩石宇高振恒
Owner TAIYUAN UNIV OF TECH
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