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A method for monitoring information security assessment of in-service bridges

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 structural damage misjudgment, harsh environment, and hindering the application of damage identification methods, and achieve breakthrough limitations , enhance the value of engineering practice, and enhance the effect of bridge state assessment research direction

Inactive Publication Date: 2017-09-05
CHONGQING JIAOTONG UNIVERSITY
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  • Description
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Problems solved by technology

[0003] Due to the large and complex civil structure and the harsh environment, the sensor is inevitably affected by various disturbances in the surrounding environment during the actual acquisition process, and these disturbances often cause misjudgment of structural damage, which hinders the use of damage identification methods in actual engineering. Therefore, it is necessary to introduce statistical theory in damage identification to carry out statistical analysis on the results of damage identification, and to replace the traditional deterministic identification of structural damage with statistical identification of structural damage.

Method used

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  • A method for monitoring information security assessment of in-service bridges

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Embodiment Construction

[0024] 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.

[0025] Such as figure 1 As shown, the present invention provides a method for monitoring information security assessment of in-service bridges, which is characterized in that it includes the following steps:

[0026] 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 b...

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Abstract

The invention discloses a method for assessing the safety of bridge monitoring information in service, which includes: analyzing the internal relationship between the structural response signal and the state evolution of the bridge structure, digging out the essential connotation of the bridge monitoring information, constructing the bridge monitoring information time series; establishing the echo state The network bridge monitoring information characteristic model is used as the bridge structure state characteristic system; the bridge structure damage sensitivity index is constructed, and the critical parameters of damage evolution are obtained; the bridge state evolution model is constructed; and the bridge safety assessment is carried out. The invention integrates information science, data mining, pattern recognition and other multidisciplinary knowledge, realizes multidisciplinary crossover and integration, and provides beneficial exploration and technical support for further improving the application quality of bridge health monitoring system and the research direction of bridge state assessment .

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 Patents(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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