Vehicle travelling performance-based method for evaluating travelling service performance of highway bridge expansion device

Abstract

The invention is applied to the field of highway bridge detection. If a bridge support or an expansion device is damaged, an expansion joint could be misplaced, and travelling vibration response may be caused under the stimulation of the concave-convex expansion joint. The invention discloses a vehicle travelling performance-based method for evaluating travelling service performance of a highway bridge expansion device. The method comprises the steps as follows: defining a travelling performance grading evaluation method and a travelling performance deterioration rate computing method; determining vehicle travelling performance according to a vehicle acceleration response signal, and determining a travelling deterioration rate according to an actual measured current value and a detection initial value of travelling performance; outputting an inspection and evaluation report according to a result of grading evaluation. By using the method for regularly tracking and monitoring vehicle travelling performance deterioration rate, the method of the invention can be used for diagnosing early damage of the evaluated object based on the travelling service performance. The method of the invention improves the recognizability of early damage of the highway bridge expansion device and support service and the quality of inspection and evaluation while improving detection efficiency.

Description

technical field [0001] The invention belongs to the field of highway and bridge detection, and relates to a method for evaluating the service performance of a highway and bridge telescopic device. Background technique [0002] Highway bridge bearings and expansion devices are important structures in highway bridges. Maintenance departments are usually required to conduct periodic inspections of bearings and expansion devices, to systematically grasp their technical status, to detect defects and related environmental changes in time, and to inspect them accordingly. Results The function and technical status of the support and telescopic device were evaluated, and the corresponding maintenance countermeasures were formulated scientifically. [0003] Under operating conditions, with the extension of the service period, highway bridges inevitably have some deterioration or disease. The deterioration of the expansion device is mainly manifested in the relative dislocation of the ...

AI Technical Summary

Problems solved by technology

In order to overcome the shortcomings of the above-mentioned existing manual inspection methods, the present invention provides a method for evaluating the service performance of road bridge expansion devices based on the driving performance, which can realize the rapid detection and evaluation of the degradation of the driving function of the active road bridge expansion devices

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