Vehicle-mounted bridge bearing capacity rapid detection and evaluation system and method

Abstract

The invention provides a vehicle-mounted bridge bearing capacity rapid detection and evaluation system and method. The system comprises a bridge data acquisition subsystem used for acquiring bridge image information, bridge span deformation information when a test load is loaded and removed, and sound wave data emitted by damage of an internal structure of a bridge when the test load passes, and sending the bridge image information, the bridge span deformation information and the sound wave data to a data analysis processing subsystem; the data analyzing and processing subsystem is used for judging the bridge load grade, the bridge working state information and the bridge damage condition according to the data sent by the bridge data collecting subsystem and sending the data to the decision-making subsystem; and the decision subsystem is used for comprehensively evaluating the bridge bearing capacity and the vehicle trafficability according to the data sent by the data analyzing and processing subsystem and assisting in decision making. Whether bridge crossing can be achieved or not can be quickly judged through the system, timeliness is high, the system can conduct investigation on site according to the process, and drawings do not need to be known in advance; the system is arranged on a vehicle, and is high in safety, not prone to damage, convenient to maintain and high in universality.

Description

technical field [0001] The invention relates to the technical field of bridge bearing capacity detection, in particular to a system and method for rapid detection and evaluation of the bearing capacity of vehicle-mounted bridges. Background technique [0002] Affected by factors such as vehicle overload, temperature, prestress loss, carbonization, corrosion, etc., bridge structural materials will be corroded and gradually aged, and their strength and stiffness will decrease with time. This will not only reduce the service life of the bridge, but also bring safety hazards to the passing vehicles. Bridge structural health status detection has become an important task in the daily operation and maintenance of bridges. [0003] Up to now, the technical status of bridges mainly depends on technicians supplemented by certain testing equipment, and the evaluation is carried out according to the current technical standards. Regular bridge testing is carried out every two years, and...

AI Technical Summary

Problems solved by technology

[0008] 3) The civil bridge health monitoring system needs to be installed on each bridge, and its safety warning threshold is different for each bridge. higher

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