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Prediction of storey drift for reinforced concrete structures subjected to pulse-like ground motions using machine learning classification models
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Prediction of storey drift for reinforced concrete structures subjected to pulse-like ground motions using machine learning classification models
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Prediction of storey drift for reinforced concrete structures subjected to pulse-like ground motions using machine learning classification models
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Journal Article
Prediction of storey drift for reinforced concrete structures subjected to pulse-like ground motions using machine learning classification models
2024
Overview
PurposeNear-fault pulse-like ground motions have distinct and very severe effects on reinforced concrete (RC) structures. However, there is a paucity of recorded data from Near-Fault Ground Motions (NFGMs), and thus forecasting the dynamic seismic response of structures, using conventional techniques, under such intense ground motions has remained a challenge.Design/methodology/approachThe present study utilizes a 2D finite element model of an RC structure subjected to near-fault pulse-like ground motions with a focus on the storey drift ratio (SDR) as the key demand parameter. Five machine learning classifiers (MLCs), namely decision tree, k-nearest neighbor, random forest, support vector machine and Naïve Bayes classifier , were evaluated to classify the damage states of the RC structure.FindingsThe results such as confusion matrix, accuracy and mean square error indicate that the Naïve Bayes classifier model outperforms other MLCs with 80.0% accuracy. Furthermore, three MLC models with accuracy greater than 75% were trained using a voting classifier to enhance the performance score of the models. Finally, a sensitivity analysis was performed to evaluate the model's resilience and dependability.Originality/valueThe objective of the current study is to predict the nonlinear storey drift demand for low-rise RC structures using machine learning techniques, instead of labor-intensive nonlinear dynamic analysis.
Publisher
Emerald Publishing Limited,Emerald Group Publishing Limited
Subject
/ Drift
