Method for safety evaluation of monitoring information of in-service bridge

A technology of monitoring information and safety assessment, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as limitations of safety evaluation, improve application quality, break through limitations, and improve bridge state evaluation research direction effect

Inactive Publication Date: 2015-04-08
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

[0004] One of the purposes of the present invention is to solve the problem of the limitation of traditional bridge safety assessment, and provide a method for assessing bridge safety status based on statistical pattern recognition theory using bridge structure health monitoring information

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  • Method for safety evaluation of monitoring information of in-service bridge

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Embodiment Construction

[0023] Specific embodiments of the present invention will be described in detail below in conjunction with specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects. In the drawings of the following embodiments, the same reference numerals appearing in each drawing represent the same features or components, which can be applied in different embodiments.

[0024] Such as figure 1 As shown, the present invention provides a method for monitoring information security assessment of in-service bridges, comprising the following steps:

[0025] S1: Analyze the internal relationship between the structural response signal and the state evolution of the bridge structure, dig out the essential connotation of the bridge monitoring information, and construct the bridge monitoring information tim...

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Abstract

The invention discloses a method for safety evaluation of monitoring information of an in-service bridge. The method comprises the following steps: analyzing the internal linkage between a structural response signal and state evolution of a bridge structure, excavating essential connotation of the monitoring information of the bridge, and constructing the time sequence of the monitoring information of the bridge; establishing an echo state network bridge monitoring information characteristic model as a bridge structure state characteristic system; constructing damage sensitive indexes of the bridge structure and obtaining critical parameters of damage evolution; constructing a bridge state evolution mode; performing safety evaluation on the bridge. According to the method disclosed by the invention, by integrating information science, data mining, mode identification and other disciplinary knowledge, intersection and integration of multiple disciplines are realized, beneficial explosion and technical support are provided for further improving the application quality of a bridge health monitoring system and widening the research direction of state evaluation of the bridge.

Description

technical field [0001] The invention belongs to the field of bridge information monitoring, and in particular relates to a new technology for bridge safety state assessment based on bridge structure health monitoring information. Background technique [0002] With the emergence of computers in the 1940s and the rise of artificial intelligence in the 1950s, people hoped to use computers to replace or expand part of human mental work. Pattern recognition rapidly developed into a relatively complete subject area in the early 1960s. It is also the intersection of multidisciplinary fields, involving statistics, fuzzy set theory, engineering, artificial intelligence, computer science, etc. Structural damage diagnosis is the continuation and application of pattern recognition theory in the engineering field. Its essence is "state recognition", that is, to solve the classification problem of different states of the same structural system. Therefore, the application of SHM statistica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 杨建喜舒劲秋周应新周建庭宋乾坤
Owner CHONGQING JIAOTONG UNIVERSITY
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