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Bridge displacement measurement system and expansion joint width measurement method

A displacement measurement and width measurement technology, applied in the direction of photo interpretation, etc., can solve the problems of poor reliability and flexibility of manual detection, safety risks of high-altitude operations, and inability to realize real-time measurement, and achieve real-time efficient measurement, low cost, and improved accuracy. sexual effect

Inactive Publication Date: 2017-03-29
LIAONING TECHNICAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0002] The relative displacement between the beam body and the pier on the bridge and the width displacement of the expansion joint between the beam body are the key parameters in bridge health monitoring. So far, there is no instrument in the prior art that can directly measure the above two displacements. Generally, the method of manual periodic inspection is used for measurement. The reliability and flexibility of manual inspection are poor. Not only the measurement cost is high, but also real-time measurement cannot be realized. At the same time, there are certain safety risks in high-altitude operations.

Method used

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  • Bridge displacement measurement system and expansion joint width measurement method

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Embodiment Construction

[0012] A bridge displacement measurement system and expansion joint width measurement method, including a beam body 2 laid on a bridge pier 1, the innovation is that an ultrasonic reflection plate 3 is arranged on the surface of the beam body 2, and a mounting frame 6 is fixed on the bridge pier; the mounting frame 6 is provided with an ultrasonic probe 4 , the emission area of ​​the ultrasonic probe 4 is opposite to the reflection area of ​​the ultrasonic reflection plate 3 , and the ultrasonic probe 4 adopts an ultrasonic sensor integrating transceiver.

[0013] Further, the ultrasonic probe 4 is powered by a solar panel 5, and the solar panel is arranged on the bridge body.

[0014] A bridge displacement measurement system and an expansion joint width measurement method, the method mainly includes the following steps:

[0015] Step 11. Using a vision system composed of high-speed area array cameras, high-speed image acquisition is performed on the surface of the expansion j...

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Abstract

The invention provides a bridge displacement measurement system and an expansion joint width measurement method. The bridge displacement measurement system comprises a bridge body paved on a pier, and is characterized in that an ultrasonic reflecting plate is arranged on the surface of the bridge body, a mounting frame is fixed on the pier, an ultrasonic probe, which is a transceiving-integrated ultrasonic sensor, is arranged on the mounting frame, and an emission area of the ultrasonic probe is opposite to a reflection area of the ultrasonic reflecting plate. The bridge displacement measurement system and the expansion joint width measurement method have the advantage that a novel measurement means depending on mature and stable technologies is provided for relative displacement measurement of the bridge body and the pier and capable of efficiently and economically measuring relative displacement data of the bridge body and the pier in real time without onsite operation of personnel.

Description

technical field [0001] The invention relates to a bridge displacement measurement system and an expansion joint width measurement method, in particular to a bridge displacement measurement system and an expansion joint width measurement method. Background technique [0002] The relative displacement between the beam body and the pier on the bridge and the width displacement of the expansion joint between the beam body are the key parameters in bridge health monitoring. So far, there is no instrument in the prior art that can directly measure the above two displacements. Generally, manual periodic inspection is used for measurement. The reliability and flexibility of manual inspection are poor. Not only the measurement cost is high, but also real-time measurement cannot be realized. At the same time, there are certain safety risks in high-altitude operations. [0003] With the rapid development of computer technology, image processing technology is more and more widely used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/04
CPCG01C11/04
Inventor 康旭张彬熊艳楠
Owner LIAONING TECHNICAL UNIVERSITY
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