Bridge live load optimization identification system

Abstract

The invention provides a bridge live load optimization and identification system based on multi-source redundant information. The system is characterized in that the system comprises a number of dynamic strain gauges with different numbers for collecting dynamic strain data of a bridge structure, at least one bridge traffic monitoring device used for generating a vehicle monitoring video, and a calculating processing device used for performing calculation to acquire a live load of a bridge. The calculation processing device comprises a dynamic strain processing unit which processes the dynamicstrain data of the bridge structure to acquire the peak of a static component thereof, a video vehicle identification unit which identifies the vehicle monitoring video to acquire position information, a vehicle coordinate conversion unit which converts the position information to acquire the actual position coordinate of a vehicle, a vehicle weight calculation unit which calculates the weight ofthe vehicle according to the peak of the static component, the actual position coordinates and the impact surface of the bridge, and a vehicle weight statistics checking unit which is used to performstatistics on the vehicle weight so as to check the vehicle weight as the live load of the bridge.

Description

technical field [0001] The invention relates to the field of highway bridge safety monitoring, in particular to a bridge live load optimization identification system. Background technique [0002] Modern bridges are designed and built for traffic purposes. Therefore, obtaining traffic information such as weight, speed, quantity, type, and spatio-temporal distribution of vehicles driving on bridges is of great significance for the improvement of bridge structure design specifications, safety evaluation, and maintenance decisions. In view of this, a lot of research has been done on the identification of bridge traffic information at home and abroad. [0003] Traditional bridge dynamic weighing systems use induction coils installed on the bridge pavement or traffic radar detection to obtain vehicle position information and lateral position, but these systems are costly, have poor durability, and need to interrupt traffic for installation or maintenance , not applicable to old ...

AI Technical Summary

Problems solved by technology

[0003] Traditional bridge dynamic weighing systems use induction coils installed on the bridge pavement or traffic radar detection to obtain vehicle position information and lateral position, but these systems are costly, have poor durability, and need to interrupt traffic for installation or maintenance , not suitable for old bridges and existing bridges with heavy traffic

At the same time, the bridge weighing system based on bridge-mounted sensors usually cannot realize the identification of multiple vehicles crossing the bridge at the same time. multi-axle

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