Developing Soft-Computing Models for Simulating the Maximum Moment of Circular Reinforced Concrete Columns

Document Type : Regular Article

Authors

1 Ph.D., Civil Engineering Department, Faculty of Engineering, Al Albayt University, 25113 Mafraq, Jordan

2 Ph.D., Civil Engineering Department, Faculty of Engineering Technology Al-Balqa Applied University, 11134 Amman, Jordan

Abstract

There has been a significant rise in research using soft-computing techniques to predict critical structural engineering parameters. A variety of models have been designed and implemented to predict crucial elements such as the load-bearing capacity and the mode of failure in reinforced concrete columns. These advancements have made significant contributions to the field of structural engineering, aiding in more accurate and reliable design processes. Despite this progress, a noticeable gap remains in literature. There's a notable lack of comprehensive studies that evaluate and compare the capabilities of various machine learning models in predicting the maximum moment capacity of circular reinforced concrete columns. The present study addresses a gap in the literature by examining and comparing the capabilities of various machine learning models in predicting the ultimate moment capacity of spiral reinforced concrete columns. The main models explored include AdaBoost, Gradient Boosting, and Extreme Gradient Boosting. The R2 value for Histogram-Based Gradient Boosting, Random Forest, and Extremely Randomized Trees models demonstrated high accuracy for testing data at 0.95, 0.96, and 0.95, respectively, indicating their robust performance. Furthermore, the Mean Absolute Error of Gradient Boosting and Extremely Randomized Trees on testing data was the lowest at 36.81 and 35.88 respectively, indicating their precision. This comparative analysis presents a benchmark for understanding the strengths and limitations of each method. These machine learning models have shown the potential to significantly outperform empirical formulations currently used in practice, offering a pathway to more reliable predictions of the ultimate moment capacity of spiral RC columns.

Highlights

  • This research applies various machine learning models to estimate the ultimate moment capacity of spirally reinforced concrete columns.
  • Through comparison and benchmarking against both experimental and conventional model results, the study validates the high reliability of machine learning predictions for spiral RC columns' moment capacity.
  • The developed soft-computing models are found to significantly outperform the empirical formulations introduced by the codes of practice.
  • This work underscores the potential of machine learning in improving accuracy and reliability in structural engineering predictions, contributing to safer and more efficient structural designs.

Keywords

Main Subjects

References

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History

  • Receive Date: 08 November 2022
  • Revise Date: 24 June 2023
  • Accept Date: 17 July 2023

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