Bridge displacement measurement system and expansion joint width measurement method

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...

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.

Images