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Large-span bridge superstructure state evaluation method and system

A structural state, large-span technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the complex and cumbersome calculation process of the fifth index, high data processing requirements, and difficult to achieve comprehensive evaluation of bridge systems, etc. problem, to achieve the effect of easy implementation, simple and convenient calculation, and strong practicability

Active Publication Date: 2021-08-20
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual use process, the calculation process of the five-degree index is relatively complicated and cumbersome, and the requirements for data processing are high, and the various components of the bridge are not considered as a system in the evaluation process, so it is difficult to achieve a comprehensive evaluation of the bridge system

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  • Large-span bridge superstructure state evaluation method and system
  • Large-span bridge superstructure state evaluation method and system
  • Large-span bridge superstructure state evaluation method and system

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0030] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The invention relates to a large-span bridge superstructure state evaluation method and system, and the method comprises the following steps: (1) collecting and preprocessing related monitoring data of a large-span bridge superstructure, and obtaining the response data of a main beam, a bridge tower and a bridge cable; (2) independently evaluating various parts of the upper structure of the large-span bridge by adopting 3A indexes which comprise amplitude offset, anomaly and mean fluctuation, and obtaining scores of the various parts; (3) setting weight coefficients of a main beam, a bridge tower and a bridge cable, and calculating a comprehensive evaluation index by combining scores of various parts; and (4) evaluating the current state of the large-span bridge superstructure according to the comprehensive evaluation index. According to the method and the system, the current state of the large-span bridge superstructure can be quickly and reliably judged and evaluated.

Description

technical field [0001] The invention belongs to the field of bridge health monitoring, and in particular relates to a method and a system for evaluating the state of a superstructure of a long-span bridge. Background technique [0002] Long-span bridges, such as cable-stayed bridges and suspension bridges, will be damaged due to factors such as load and environment after long-term operation, which will affect the safety and normal performance of the bridge. Therefore, regular or special inspections, repairs and reinforcements are required. In recent years, many long-span bridges have installed health monitoring systems for the assessment of bridge operation status. However, the health monitoring system generates massive amounts of data every day, making the analysis and processing of these data very time-consuming and laborious during the evaluation process. At the same time, how to extract useful features or indicators from massive data to accurately evaluate the current r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F119/02G06F119/14
CPCG06F30/13G06F2119/14G06F2119/02
Inventor 方圣恩秦劲东
Owner FUZHOU UNIV