A detection method for dynamic load distribution of vehicles on long-span bridges

Abstract

The present invention proposes a method for detecting dynamic load distribution of long-span bridge vehicles. The method utilizes a dynamic weighing device, adopts image splicing and multi-vehicle detection, and realizes real-time collection, real-time processing and real-time analysis of long-span bridge load data, and provides bridge Management and maintenance provide the basis. Wherein, in the mosaic process, the image mosaic algorithm based on the Harris operator is used to remove the overlapped part of the image. After obtaining the real-time panoramic image of the bridge deck, the multi-vehicle detection algorithm is used to track the vehicle and obtain the vehicle position. Finally, according to the vehicle weight obtained by the dynamic weighing device and the vehicle position obtained by the multi-vehicle detection algorithm, combined with the bridge design parameters, the real-time load of the bridge is calculated.

Description

technical field

[0001] The invention belongs to the field of bridge detection, and relates to a detection method of a long-span bridge load, in particular to a detection method of a dynamic load distribution of a large-span bridge vehicle. Background technique

[0002] The dynamic load distribution of bridge vehicles plays a very important role in the process of bridge design and operation, and is an important parameter in the process of bridge real-time monitoring. In recent years, some bridges have been crushed by overloaded and overweight vehicles from time to time. A large number of illegal overloaded and overweight vehicles have entered the bridge, causing serious damage to the bridge structure and bringing serious hidden dangers to the safe operation of the bridge. Once a danger occurs, it will cause irreparable damage. Loss. Therefore, it is necessary to monitor the bridge in real time. During the monitoring process, it is particularly important to detect the dynamic...

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