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Steel and Composite Structures Volume 42, Number 6, March25 2022 , pages 733-745 DOI: https://doi.org/10.12989/scs.2022.42.6.733 |
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Modelling the deflection of reinforced concrete beams using the improved artificial neural network by imperialist competitive optimization |
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Ning Li, Panagiotis G. Asteris, Trung-Tin Tran, Biswajeet Pradhan and Hoang Nguyen
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| Abstract | ||
| This study proposed a robust artificial intelligence (AI) model based on the social behaviour of the imperialist competitive algorithm (ICA) and artificial neural network (ANN) for modelling the deflection of reinforced concrete beams, abbreviated as ICA-ANN model. Accordingly, the ICA was used to adjust and optimize the parameters of an ANN model (i.e., weights and biases) aiming to improve the accuracy of the ANN model in modelling the deflection reinforced concrete beams. A total of 120 experimental datasets of reinforced concrete beams were employed for this aim. Therein, applied load, tensile reinforcement strength and the reinforcement percentage were used to simulate the deflection of reinforced concrete beams. Besides, five other AI models, such as ANN, SVM (support vector machine), GLMNET (lasso and elastic-net regularized generalized linear models), CART (classification and regression tree) and KNN (k-nearest neighbours), were also used for the comprehensive assessment of the proposed model (i.e., ICA-ANN). The comparison of the derived results with the experimental findings demonstrates that among the developed models the ICA-ANN model is that can approximate the reinforced concrete beams deflection in a more reliable and robust manner. | ||
| Key Words | ||
| artificial neural network; deflection of RC beam; ICA-ANN; modelling; optimization algorithm | ||
| Address | ||
| Ning Li: School of Resource and Environment Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China Panagiotis G. Asteris: Computational Mechanics Laboratory, School of Pedagogical and Technological Education, 14121 Heraklion, Athens, Greece Trung-Tin Tran: Department of Information Technology, FPT University, Danang, 550000, Vietnam Biswajeet Pradhan:Centre for Advanced Modelling and Geospatial Information Systems (CAMGIS), School of Civil and Environmental Engineering, Faculty of Engineering & IT, University of Technology Sydney, NSW 2007, Australia/ Center of Excellence for Climate Change Research, King Abdulaziz University, P. O. Box 80234, Jeddah 21589, Saudi Arabia/ Earth Observation Centre, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia Hoang Nguyen:Hanoi University of Mining and Geology, 18 Vien Street, Duc Thang Ward, Bac Tu Liem District, Hanoi 100000, Vietnam/ Innovations for Sustainable and Responsible Mining (ISRM) Research Group, Hanoi University of Mining and Geology, 18 Vien Street, Duc Thang Ward, Bac Tu Liem District, Hanoi 100000, Vietnam | ||