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Open AccessArticle

Development of an ANN-Based Lumped Plasticity Model of RC Columns Using Historical Pseudo-Static Cyclic Test Data

by Zhenliang Liu 1,2 and Suchao Li 1,2,3,*
1
Key Laboratory of Structural Dynamic Behavior and Control of Ministry of Education, School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
2
Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China
3
Department of Civil Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(20), 4263; https://doi.org/10.3390/app9204263
Received: 19 September 2019 / Revised: 2 October 2019 / Accepted: 5 October 2019 / Published: 11 October 2019
This study explores the possibility of using an ANN-based model for the rapid numerical simulation and seismic performance prediction of reinforced concrete (RC) columns. The artificial neural network (ANN) method is implemented to model the relationship between the input features of RC columns and the critical parameters of the commonly used lumped plasticity (LP) model: The strength and the yielding, capping and ultimate deformation capacity. Cyclic test data of 1163 column specimens obtained from the PEER and NEEShub database and other sources are collected and divided into the training set, test set and validation set for the ANN model. The effectiveness of the proposed ANN model is validated by comparing it with existing explicit formulas and experimental results. Results indicated that the developed model can effectively predict the strength and deformation capacities of RC columns. Furthermore, the response of two RC frame structures under static force and strong ground motion were simulated by the ANN-based, bi-linear and tri-linear LP model method. The good agreement between the proposed model and test results validated that the ANN-based method can provide sufficiently accurate model parameters for modeling the seismic response of RC columns using the LP model. View Full-Text
Keywords: strength; yielding capping and ultimate deformation; RC column; cyclic test database; artificial neural network; bi-linear and tri-linear lumped plasticity model strength; yielding capping and ultimate deformation; RC column; cyclic test database; artificial neural network; bi-linear and tri-linear lumped plasticity model
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Liu, Z.; Li, S. Development of an ANN-Based Lumped Plasticity Model of RC Columns Using Historical Pseudo-Static Cyclic Test Data. Appl. Sci. 2019, 9, 4263.

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