Optimization of existing equations using a new Genetic Programming algorithm: Application to the shear strength of reinforced concrete beams

Authors:
Juan L. PéRez;Antoni Cladera;Juan R. RabuñAl;Fernando MartíNez-Abella
Affiliations:
School of Building Engineering and Technical Architecture, University of A Coruña, Spain;Department of Physics, University of the Balearic Islands, Spain;Department of Information and Communication Technologies, University of A Coruña, Spain;Department of Construction Technology, University of A Coruña, Spain
Venue:
Advances in Engineering Software
Year:
2012

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Abstract

A method based on Genetic Programming (GP) to improve previously known empirical equations is presented. From a set of experimental data, the GP may improve the adjustment of such formulas through the symbolic regression technique. Through a set of restrictions, and the indication of the terms of the expression to be improved, GP creates new individuals. The methodology allows us to study the need of including new variables in the expression. The proposed method is applied to the shear strength of concrete beams. The results show a marked improvement using this methodology in relation to the classic GP and international code procedures.