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Industrial building concrete carbonization depth prediction method

A carbonation depth, industrial building technology, applied in the direction of design optimization/simulation, etc., can solve the problem of lack of effective methods for carbonation depth prediction

Pending Publication Date: 2020-11-06
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for predicting the carbonation depth of industrial building concrete in view of the above-mentioned deficiencies in the prior art, so as to solve the problem that the existing industrial building durability prediction lacks an effective method for carbonation depth prediction

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  • Industrial building concrete carbonization depth prediction method
  • Industrial building concrete carbonization depth prediction method
  • Industrial building concrete carbonization depth prediction method

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Embodiment Construction

[0055] See figure 1 , A method for predicting the carbonization depth of industrial building concrete of the present invention includes the following steps:

[0056] S1. Obtain historical data of carbonization depth in the natural environment of industrial buildings, and divide them into training set and test set randomly according to the relevant ratio (this ratio is usually used when the data sample is less than 10,000), and the ratio here is 7:3.

[0057] S2. Use the variational modal decomposition (VMD) method to adaptively decompose the training set and test set in step S1, effectively extract the detailed features of the original sequence, reduce the instability of the original signal, and improve the prediction accuracy; Spatial reconstruction optimizes the processing and processing of the decomposed data of each modal component, so that the reconstructed samples better reflect the carbonization changes of industrial buildings under natural conditions, such as figure 2 Show...

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Abstract

The invention discloses an industrial building concrete carbonization depth prediction method. The method comprises the steps: obtaining historical data of industrial building carbonization depth in anatural environment and dividing the historical data into a training set and a test set; performing adaptive decomposition on the training set and the test set by using a variational modal decomposition method to obtain modal component sub-sequences of the training set and the test set; training each modal component sub-sequence of a gating cycle unit by using the modal component sub-sequence ofthe training set as a training prediction model, and establishing a gating cycle network carbonization depth prediction sub-model of each modal component sub-sequence of the training set; and predicting the modal component sub-sequences of the test set by using the gated cycle network carbonization depth prediction sub-model of each modal component sub-sequence of the training set, accumulating prediction values, and performing comparative analysis on the prediction values and a real value to complete industrial building concrete carbonization depth prediction evaluation. According to the method, the characteristics of the industrial building carbonization depth time sequence are mastered more meticulously, and the accuracy of carbonization depth prediction is greatly improved.

Description

Technical field [0001] The invention belongs to the technical field of concrete carbonation depth prediction in the research of industrial building durability, and specifically relates to a method for predicting the concrete carbonation depth based on a VMD-GRU model. Background technique [0002] As one of the pillar industries of our country, industry plays a pivotal role in the country's economic development, and the continuous and stable progress of industrial production activities requires the safe structural performance of industrial buildings as a guarantee. In my country's urban planning, the total area of ​​industrial buildings accounts for 20% to 35%. At this stage, the existing industrial buildings in my country are mainly concrete structures with a service age of more than 20 years. They are usually under dynamic load, high temperature and high humidity and harsh environment, and long-term service can easily cause structural performance damage and partial function los...

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Application Information

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IPC IPC(8): G06F30/27
CPCG06F30/27
Inventor 董振平陈亚州于军琪赵安军张英坤景媛媛
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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