Compressive Strength Prediction and Mix Proportion Design of UHPC Based on GA-BP Neural Network

被引:0
作者
Chen Q. [1 ,2 ]
Ma R. [1 ,2 ]
Jiang Z. [1 ,2 ]
Wang H. [1 ,2 ]
机构
[1] Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, Shanghai
[2] School of Materials Science and Engineering, Tongji University, Shanghai
来源
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2020年 / 23卷 / 01期
关键词
Compressive strength prediction; GA-BP neural network; Genetic algorithm; Mix proportion design; Ultra-high performance concrete(UHPC);
D O I
10.3969/j.issn.1007-9629.2020.01.027
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Preparation and compressive strength test of UHPC with different mix proportions were carried out, and neural network training samples were formed by combining the existing experimental data. The topology structure of input layer(7 nodes), hidden layer(8 nodes) and output layer(1 node) of the neural network was designed according to the raw material composition and performance requirements of UHPC. The genetic algorithm(GA) was introduced to optimize the initial weight and threshold of the UHPC compressive strength prediction network. The GA-BP neural network for compressive strength prediction of UHPC with different mix proportions was simulated and trained with the experimental samples, and the mix design method based on different performance requirements was established. By comparing the experimental data with the results of traditional BP neural network method, it is confirmed that the proposed GA-BP neural network can better guide the compressive strength prediction and mix design of UHPC. © 2020, Editorial Department of Journal of Building Materials. All right reserved.
引用
收藏
页码:176 / 183and191
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