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Strain gauge for monitoring pavement structure

A pavement structure and strain gauge technology, applied in the direction of measuring force, measuring device, instrument, etc., can solve problems such as temperature error, unreasonable force, insufficient compression resistance, etc., and achieve simple structure, reliable performance, strong resistance and so on. compressive effect

Active Publication Date: 2016-09-07
CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of insufficient compressive resistance, unreasonable force, high temperature resistance, temperature error and poor anti-interference that existing strain gauges face when they are applied to pavement structures

Method used

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  • Strain gauge for monitoring pavement structure
  • Strain gauge for monitoring pavement structure
  • Strain gauge for monitoring pavement structure

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.

[0029] Such as Figure 2-6 Shown, a kind of strain gauge that is used for pavement structure monitoring comprises the first electric resistance strain gauge 2-6, also includes bearing plate 2-2, left bearing bearing 2-4 and right bearing bearing 2-5 , the force plate 2-2, the left force support 2-4, and the right force support 2-5 are processed by bending the two ends of a spring steel plate in opposite directions, the bending angle is 90°, and the temperature correction plate 2-3 is arranged on the side of the right bearing support 2-5, the temperature correction plate 2-3 is made of the same material as the bearing plate 2-2, and the first resistance strain gauge 2-6 is arranged on the bearing plate 2-2, The temperature correction plate 2-3 is provided with a second resistance strain gauge 2-7, the force plate 2-2, the temperature correct...

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Abstract

The invention discloses a strain gauge for monitoring a pavement structure. The strain gauge comprises a first resistance foil gauge, a bearing plate, a left bearing base and a right bearing base, wherein the bearing plate, the left bearing base and the right bearing base are made by bending two ends of a steel spring plate towards opposite directions by 90 degrees, a temperature correction plate is arranged on the side portion of the right bearing base and made of a same material with the bearing plate, the first resistance foil gauge is arranged on the bearing plate, a second resistance foil gauge is arranged on the temperature correction plate, the bearing plate, the temperature correction plate, the first resistance foil gauge and the second resistance foil gauge are wrapped up by a rubber layer, and the end portions of the left bearing base and the right bearing base extend out of the rubber layer. The strain gauge effectively eliminates error caused by temperature. The strain gauge has the advantages of simple structure, strong connection, stable performance and good anti-destructive performance.

Description

technical field [0001] The invention relates to the field of strain measuring devices, in particular to a strain gauge used for road surface structure monitoring. Background technique [0002] Strain gauges for pavement structure monitoring are mainly used to monitor the strain between layers of pavement structure layers, the strain in pavement structure layers and the strain at cracks in pavement structure layers, and are suitable for long-term monitoring of strains buried inside pavement structure layers. In addition, the stress can be obtained through the strain transformation calculation. Therefore, the strain gauge used for monitoring the pavement structure can also be used to indirectly monitor the stress of the pavement structure. The pavement structure layer is mainly composed of crushed stones, and the edges and corners of the crushed stones are easy to squeeze and damage the sensor under the load pressure of the vehicle. If the sensor is buried with the pavement la...

Claims

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Application Information

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IPC IPC(8): G01L1/22
CPCG01L1/22G01L1/2281
Inventor 张晶付伟何斌冯振中卫强余顺新吴万平谢松林王云阮艳彬张静波刘星韩洪彬
Owner CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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