Bridge support displacement test method based on microwave vibration measurement

By constructing a three-dimensional model of bridge bearings and combining dynamic weighing equipment monitoring, the deployment and operation of microwave vibration measurement equipment is optimized, and the shortcomings of microwave vibration measurement technology in the existing technology in bridge bearing displacement detection are solved, precise detection and safety assessment of bridge structure are realized, and bridge use safety is improved.

CN119991814AActive Publication Date: 2025-05-13内蒙古交通设计研究院有限责任公司 +1
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Patent Information

Application Number
CN202510453689.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2025-05-13
Estimated Expiration
2045-04-11

AI Technical Summary

Technical Problem

The existing microwave vibration measurement technology is limited by the transmission bandwidth in bridge support displacement detection, low distance resolution, and has problems such as static clutter interference, adjacent multi-component coupling and component aliasing interference of the same distance unit. It is impossible to achieve full-field deformation and vibration measurement of bridges, and it is difficult to effectively evaluate the performance and safety of bridge structures.

Method used

The distance measuring equipment collects bridge support structure information to build a three-dimensional model, selects the appropriate deployment location and direction of microwave vibration measurement equipment, sets the operation cycle, and uses dynamic weighing equipment to monitor the vehicle status, triggers the operation of microwave vibration measurement equipment, collects and analyzes microwave signals to detect bridge support displacement, and conducts risk analysis and stability assessment.

Benefits of technology

Accurate detection of bridge support displacement and safety assessment of bridge structure are realized, effectively improving the safety of bridge use and ensuring the healthy bridge status to serve traffic scenarios.

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Abstract

The invention relates to the technical field of bridge structure safety, in particular to a bridge support displacement test method based on microwave vibration measurement, which comprises the following steps: acquiring the size information of each structure of a bridge support in a bridge support mounting scene through distance measuring equipment, and constructing a bridge support three-dimensional model according to the acquired size information of each structure of the bridge support, measuring the distance from the bridge support mounting land surface to the nearest maximum plane component on the bridge support based on the distance measuring equipment, creating a reference surface according to the measurement result, and placing the bridge support three-dimensional model on the reference surface; according to the method, adaptive design is carried out on the deployment poses and the number of microwave vibration measurement equipment in a mode of constructing a bridge support three-dimensional model and a reference plane, and meanwhile, the optimal microwave signal acquisition time is selected to carry out microwave signal acquisition through state monitoring of vehicles running on a bridge; the microwave vibration measurement equipment can comprehensively and accurately acquire microwave signal information, so that displacement detection is carried out on the bridge support based on the acquired information.
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Citation Information

Patent Citations

  • Non-contact rapid testing and evaluation system and method for bridge structural performance and safety

    CN112747877B

  • Non-contact type bridge structure performance and safety rapid test and evaluation system and method

    CN112747877A

  • Microwave multi-dimensional deformation and vibration measurement method and system

    CN114396864A

  • Structural strain and displacement monitoring method and system based on active microwave reflection

    CN119104005A

  • Bridge support static displacement over-limit early warning correction method based on prediction model

    CN119312634A