Method for monitoring three-dimensional deformation of main body structures at two sides of deformation joint

A technology of main structure and deformation joints, applied in the direction of measuring devices, instruments, etc., can solve problems such as sensor system error, space utilization influence, monitoring data error, etc., to avoid systematic error, occupy small space, and facilitate installation and maintenance Effect

Active Publication Date: 2016-11-30
CE CENT FOR ENG RES TEST & APPRAISAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions mainly have the following two defects: (1) For the above-mentioned solution ①, since the mounting brackets of the existing sensors are all fixed on the main structures on both sides, when the main structures on both sides of the deformation joint are relatively displaced , the sensor will have a systematic error, resulting in an error in the monitoring data
When deformation occurs in two or three directions, the data of the sensor will have a large error, which will affect the accurate analysis of the structural detection data by technicians
(2) In addition, the above-mentioned current technical solutions ① and ② need to use three sensors to monitor the deformation in three directions respectively, and the data acquisition of the three sensors needs to occupy three data channels on the acquisition instrument
At the same time, the monitoring device takes up a lot of space, which will have a certain impact on the use of space after installation.

Method used

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  • Method for monitoring three-dimensional deformation of main body structures at two sides of deformation joint
  • Method for monitoring three-dimensional deformation of main body structures at two sides of deformation joint
  • Method for monitoring three-dimensional deformation of main body structures at two sides of deformation joint

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Effect test

Embodiment 1

[0080] Measure the horizontal and vertical deformation of the wall, the installation surface is vertical, the first bracket is a "one" shape with a diameter of 10mm; the second bracket is a "one" shape with a diameter of 15mm, the depth of the keyway on the second horizontal bar 3mm, length 25mm, width 10mm; trapezoidal key slope angle ψ=10°, horizontal distance L between the cross-section centers of the first horizontal rod and the second horizontal rod=100mm, connecting shaft axis and bolt-trapezoidal The horizontal distance of the contact point of the key is The corresponding values ​​of a, b, c and α, β, d are shown in Table 1.

[0081] Table 1

[0082]

[0083]

Embodiment 2

[0085]Measure the horizontal and vertical deformation of the wall, the installation surface is vertical, the first bracket is a "one" shape with a diameter of 10mm; the second bracket is a "one" shape with a diameter of 15mm, the depth of the keyway on the second horizontal rod 3mm, length 25mm, width 10mm; trapezoidal key bevel angle ψ=15°, horizontal distance L between the cross-section centers of the first horizontal bar and the second horizontal bar=100mm, connecting shaft axis and bolt-trapezoidal The horizontal distance of the key contact point is The corresponding values ​​of a, b, c and α, β, d are shown in Table 2.

[0086] a(mm)

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Abstract

The present invention provides a method for monitoring three-dimensional deformation of main body structures at two sides of a deformation joint. The method for monitoring three-dimensional deformation of main body structures at two sides of the deformation joint can monitor the displacement change of the main body structures at the two sides of the deformation joint at the vertical direction, the first horizontal direction and the second horizontal direction perpendicular to the first horizontal direction, and comprises the following steps: S1, determining the position of monitoring points on the main body structures at the two sides of the deformation joint, cleaning a finishing layer and adjuncts at the surfaces of the main body structures, and exposing the member main bodies in the main body structures; S2, installing a monitoring device; and S3, collecting data and performing data processing. Through adoption of a double-shaft tilt sensor and a displacement monitoring member, the method for monitoring three-dimensional deformation of main body structures at the two sides of the deformation joint can monitor the deformation of X, Y and Z directions of the main body structures at two sides of the deformation joint, so that the operation is simple, the monitoring data is accurate.

Description

technical field [0001] The invention relates to a method for monitoring three-dimensional deformation of main structures on both sides of deformation joints. Background technique [0002] Due to the influence of man-made or natural factors such as surrounding construction, natural precipitation, earthquakes, and explosions during the use of large-scale construction projects or underground tunnels, the foundation soil will undergo uneven settlement or soil migration to varying degrees. The main structure will undergo overall or local settlement deformation. For structural safety, deformation joints such as seismic joints, settlement joints, and expansion joints will be set as required during engineering design and construction. When deformation occurs, the structural members on both sides of the deformation joint will undergo relative displacement in the vertical and two horizontal directions, that is, vertical displacement (relative displacement in Z direction) and horizont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/32
CPCG01B21/32
Inventor 王娟娟袁伟衡金春峰段艳芳郭沫君李宏达宋春雷谭军
Owner CE CENT FOR ENG RES TEST & APPRAISAL
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