An intelligent brick device for monitoring the damage degree of a monolithic wall and its monitoring method

A technology of damage degree and monolithic wall, which is applied in measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, and using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve the problems of unconcealed engineering inspections, time-consuming and laborious on-site inspection conditions, etc. problems, to achieve a broad promotion market and application prospects, to reduce the influence of line break factors, and to make the production and installation process simple.

Active Publication Date: 2021-08-06
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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  • An intelligent brick device for monitoring the damage degree of a monolithic wall and its monitoring method
  • An intelligent brick device for monitoring the damage degree of a monolithic wall and its monitoring method
  • An intelligent brick device for monitoring the damage degree of a monolithic wall and its monitoring method

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Experimental program
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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 and a monitoring method for monitoring the damage degree of a single wall. The device includes five smart bricks; four square piezoelectric ceramic sheets are embedded in the smart brick A, and the positive and negative wires of all the piezoelectric ceramic chips embedded in the groove are respectively connected to the positive and negative wire pinholes; the smart brick A can transmit stress wave signals to four directions at the same time; smart bricks B, smart brick C, smart brick D and smart brick E are respectively embedded with a piezoelectric ceramic chip for receiving signals; the smart brick is composed of the following two parts : One part is a slotted brick mixed with steel fibers, and the other part is a piezoelectric ceramic with a copper shielding shell installed inside. The invention makes full use of the characteristics of high strength and good compatibility with the masonry structure of square bricks mixed with steel fibers, and reduces the impact of the smart brick sensor on the measured structure; the material of the invention is cheap, the structure is simple, and the applicability is strong. A simple and feasible method is provided for the damage monitoring of 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 Patents(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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