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Strain type structural section dislocation test device c

A testing device and strain-type technology, applied in the direction of measuring devices, electrical devices, instruments, etc., can solve problems such as difficult to misplace momentum, and achieve the effect of meeting accuracy requirements, avoiding inaccurate measurement and accurate data

Inactive Publication Date: 2019-05-03
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When testing the cross-sectional misalignment value of the structural surface due to various reasons such as material, structure, and joints, it is difficult to directly measure the misalignment between two points at close distances due to its own structure and equipment size, etc.

Method used

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  • Strain type structural section dislocation test device c
  • Strain type structural section dislocation test device c
  • Strain type structural section dislocation test device c

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] Fix the trabecular 7 between the two fixed ends of 10mm×10mm×5mm; fix the fixed end of 10mm×10mm×5mm on the surface of section 2 with glue; fix the small fixed end of 5mm×5mm×5mm with glue The surface of section 4. When the contact surface of section 2 and section 4 is misaligned, the position of steel ball 5 will be displaced, and the displacement value will be calculated from the strain value measured at the position of strain gage 6.

[0052] In practice, the length l of the trabecular is more suitable to be 1.0~2.0cm. From equation (10), it can be seen that the measurement accuracy of the device is related to the length and thickness of the trabecular. The greater the length of the beam, the lower the measurement accuracy of the device and the larger the range. Conversely, the smaller the trabecular length, the higher the measurement accuracy of the device and the smaller the range. The greater the thickness h of the trabeculae, the higher the accuracy, and the small...

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Abstract

The invention, which belongs to the field of civil engineering, relates to a strain type structural section dislocation test device comprising a fixed end I, a fixed end II and a small beam. One end of the small beam is fixed to the fixed end II and the other end is arranged at the fixed end I in an overlap joint manner. The fixed end II is fixed on the surface of a section I; and the fixed end Iis fixed at the surface of a section II. A steel ball and a strain gauge are arranged on the small beam; the steel ball is arranged at a distance of 1 to a near side of the fixed end II; and the strain gauge is arranged at a distance a to the near side of the fixed end II. When the contact surfaces of the section I and the section II are dislocated, displacement is caused at a displacement applying point; and section dislocation displacement is calculated according to a section strain value measured at the strain gauge. According to the invention, the section dislocation amount between two adjacent structures can be measured accurately; and thus the accurate data are provided for the engineering design.

Description

Technical field [0001] The invention belongs to the field of civil engineering, and relates to a device for testing cross-section displacement of adjacent structures. Background technique [0002] When testing the misalignment value of the structure surface due to various reasons such as material, structure, joints, etc., it is difficult to directly measure the misalignment between two points at a close distance due to its own structure and equipment size. . In addition, this kind of mismotion is generally small, and the test device needs to have a higher resolution. Summary of the invention [0003] In view of this, the object of the present invention is to provide a strain-type structure cross-section misalignment test device, which can determine the section strain through measurement, so as to obtain a high-precision cross-section misalignment amount. [0004] To achieve the above objective, the present invention provides the following technical solutions: [0005] The strain-ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/02
Inventor 范亮李鸿岩杨刚
Owner CHONGQING JIAOTONG UNIVERSITY