Canonical correlation analysis-based multi-element seismic damage potential assessment method

A canonical correlation analysis and typical technology, applied in special data processing applications, instruments, electrical digital data processing, etc. True reflection of structural failure status and other issues

Active Publication Date: 2018-06-15
HARBIN INST OF TECH
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Problems solved by technology

A single parameter of earthquake intensity cannot well describe the characteristics of earthquake motion, and cannot comprehensively and accurately evaluate the damage potential of earthquake motion.
And due to the complexity

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  • Canonical correlation analysis-based multi-element seismic damage potential assessment method
  • Canonical correlation analysis-based multi-element seismic damage potential assessment method
  • Canonical correlation analysis-based multi-element seismic damage potential assessment method

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] ginseng figure 1 As shown, the present embodiment provides a multivariate earthquake damage potential assessment method based on canonical correlation analysis, including the following steps:

[0028] Step S1, selecting earthquake motion records based on the strong earthquake database;

[0029] Step S2, establishing a nonlinear finite element analysis model of the structure, and using the selected seismic motion records as input to perform nonlinear dynamic analysis on the structure;

[0030] Step S3, select a plurality of typical earthquake intensity parameters as the basic earthquake intensity parameters, calculate the earthquake intensity of the selected earthq...

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Abstract

The invention provides a canonical correlation analysis-based multi-element seismic damage potential assessment method. The method comprises the following steps of: selecting a seismic oscillation record; establishing a nonlinear finite element analysis model of a structure; selecting a plurality of canonical seismic oscillation intensity parameters as basic seismic oscillation intensity parameters so as to calculating seismic oscillation intensity of the seismic oscillation record; selecting a plurality of canonical structure damage parameters as basic structure damage parameters so as to calculate structure damage; carrying out canonical correlation analysis to ensure that relevance between a canonical seismic oscillation intensity variable and a canonical structure damage variable is maximum; and taking the canonical seismic oscillation intensity variable as a parameter for describing multi-element seismic damage potential so as to assess relative contribution rates, to the multi-element seismic damage potential, of the basic seismic oscillation intensity parameters and then determining important seismic oscillation intensity parameters of the seismic damage potential. Accordingto the method, influences of a plurality of seismic oscillation intensity parameters are considered, so that the size of the seismic damage potential can be predicted more correctly, and the damage degree sizes of the structure under different seismic oscillation actions can be assessed more reasonably.

Description

technical field [0001] The invention belongs to the technical field of earthquake engineering and disaster prevention and reduction engineering, and in particular relates to a multivariate earthquake damage potential evaluation method based on canonical correlation analysis. Background technique [0002] In earthquake engineering research, due to the randomness of earthquake records and the complex mechanism of structural failure states, it has become an important issue in earthquake resistance research at home and abroad to evaluate structural damage caused by earthquake motions. Scholars at home and abroad have proposed some macro-seismic intensities to evaluate the damage potential of earthquake motions, which mainly measure the magnitude of earthquake destructive force subjectively, but cannot quantitatively evaluate the structural damage caused by earthquakes. Until the emergence of seismic monitoring instruments, according to the results of instrument records, research...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F2119/06
Inventor 吕大刚于晓辉刘亭亭代旷宇
Owner HARBIN INST OF TECH
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