Prediction of moment redistribution capacity in reinforced concrete beams using gene expression programming

Aydoğan M. S., Alacali S., Arslan G.

Structures, vol.47, pp.2209-2219, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47
  • Publication Date: 2023
  • Doi Number: 10.1016/j.istruc.2022.12.054
  • Journal Name: Structures
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2209-2219
  • Keywords: Moment redistribution, RC continuous beams, Prediction, Design codes, Gene expression programming
  • Yıldız Technical University Affiliated: Yes

Abstract

Moment redistribution can play an important role in making the design of reinforced concrete (RC) structures

more realistic and economical. In this paper, a new comprehensive formula has been proposed that considers

four input parameters that are thought to influence moment redistribution the most in statically indeterminate

RC beams using gene expression programming (GEP). For this reason, an experimental database of 108 data

points was collected from experimental studies in the literature to predict the moment redistribution of the RC

beams using genetic programming. All of these collected data points belong to two-span RC continuous beams.

The results of the GEP formulation were statistically compared with the experimental results obtained from the

literature and the results from the equations provided by the current design code provisions. The results of the

comparison revealed that the proposed GEP-based formulation has the best performance and accuracy among the

proposed models. Moreover, the sensitivity analysis and parametric study were also carried out to evaluate the

most critical parameters affecting on moment redistribution of RC continuous beams.