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Method and system for dynamically identifying vehicle axle load based on stay cable force influence surface loading

A dynamic identification and surface loading technology, which is applied in the direction of weighing indicating devices, weighing, instruments, etc., can solve problems such as effective management, difficult bridges, and increased maintenance workload, and achieve good adaptability to environmental conditions and wide application prospects , The effect of strong regional adaptability

Active Publication Date: 2021-02-12
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the monitoring and maintenance of bridges mainly rely on regular verification and manual inspection. In the traditional monitoring system, the data acquisition terminal and the structural response have not achieved a good correlation. With the continuous increase of the operating mileage of the bridge structure, the maintenance workload continues to increase. It is difficult to implement effective management on all bridges by means, and it is impossible to monitor and evaluate effectively in real time

Method used

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  • Method and system for dynamically identifying vehicle axle load based on stay cable force influence surface loading
  • Method and system for dynamically identifying vehicle axle load based on stay cable force influence surface loading
  • Method and system for dynamically identifying vehicle axle load based on stay cable force influence surface loading

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Embodiment 1

[0052] This embodiment discloses a method for dynamically identifying the axle load of a vehicle based on surface loading influenced by cable forces, including:

[0053] S100. Extracting girder type and structural parameter control information, specifically including: obtaining required bridge type, bridge span, bridge deck width, section type distribution, and section moment of inertia structural characteristic parameters.

[0054] In some preferred embodiments, S100 is specifically:

[0055] S101. Obtain type parameter information of the cable-stayed bridge;

[0056] S102. Obtain the span layout information of the cable-stayed bridge, divide the longitudinal bridge direction cable force influence line grid, and extract the interval and number;

[0057] S103. Acquiring bridge deck width layout information, dividing the cross-bridge direction cable force influence line grid, and extracting intervals and numbers;

[0058] S104. Acquiring section type distribution information,...

Embodiment 2

[0082] This embodiment discloses a system for dynamically identifying the axle load of a vehicle based on loading on the cable force influence surface of the cable stay, including: a beam type and structural parameter acquisition unit, a cable force influence surface acquisition unit at the cable force measurement point, and a correction cable force influence surface acquisition unit. Surface unit, trigger identification vehicle axle load system unit, vehicle axle load identification unit; where:

[0083] The beam type and structural parameter acquisition unit is used to extract the beam type and structural parameter control information, specifically including: obtaining the required bridge type, bridge span, bridge deck width, section type distribution, and structural characteristic parameters of the section moment of inertia; beam type The specific working method of the type and structure parameter acquisition unit has been described in detail in Embodiment 1, and will not be...

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Abstract

The invention discloses a method for dynamically identifying a vehicle axle load based on stay cable force influence surface loading. The method comprises the following steps: extracting beam type andstructure parameter control information; extracting the cable force influence surface control information of the stay cable force measurement points; correcting influence surface design parameters according to a static load test result of the cable-stayed bridge; setting a corresponding stay cable force threshold value for triggering a vehicle axle load identification system; enabling the stay cable force vehicle axle load identification system to identify the vehicle axle load; and triggering a cable-stayed bridge safety risk early warning system through a stay cable force. Big data, machinelearning, deep learning, safety monitoring, automatic control, computer technology, precision sensing technology and the like are integrated, stay cable force caused by structural dynamic load is used as identification parameters on the basis of structural characteristic parameter extraction and real-time structural response, cable-stayed bridge passing vehicle load is reversely identified, a newgeneration of intelligent monitoring product takes intelligent calculation as a core and takes self-induction, self-adaptation, self-learning and self-decision as significant characteristics.

Description

technical field [0001] The present invention relates to the technical field of vehicle axle load identification, and in particular to a method and system for dynamically identifying vehicle axle loads based on cable force influence surface loading. Background technique [0002] At present, the monitoring and maintenance of bridges mainly rely on regular verification and manual inspection. In the traditional monitoring system, the data acquisition terminal and the structural response have not achieved a good correlation. With the continuous increase of the operating mileage of the bridge structure, the maintenance workload continues to increase. It is difficult to implement effective management on all bridges by means, and it is impossible to monitor and evaluate effectively in real time. [0003] Under such conditions, bridge monitoring urgently needs to realize refined identification of various types of external loads, in order to more effectively understand the stress stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03G01G23/18G06F30/13G06F30/15G06F30/23G06F30/27G06F119/14
CPCG01G19/03G01G23/18G06F30/13G06F30/15G06F30/23G06F30/27G06F2119/14
Inventor 文望青张晓江李桂林严爱国瞿国钊殷鹏程严定国姜洪劲张杰王鹏宇李靓亮崔苗苗周继王志平胡方杰赵丹阳许三平张玲
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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