Industrial building concrete carbonization depth prediction method

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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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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