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New design equations for elastic modulus of concrete using multi expression programming

    Amir H. Gandomi Affiliation
    ; Ali Faramarzifar Affiliation
    ; Peyman Ghanad Rezaee Affiliation
    ; Abazar Asghari Affiliation
    ; Siamak Talatahari Affiliation

Abstract

An innovative multi expression programming (MEP) approach is used to derive new predictive equations for tangent elastic modulus of normal strength concrete (NSC) and high strength concrete (HSC). Similar to several building codes, the modulus of elasticity of NSC and HSC is formulated in terms of concrete compressive strength. Furthermore, a generic model is developed for the estimation of the elastic modulus of both NSC and HSC. Comprehensive databases are gathered from the literature to develop the models. For more verification, a parametric analysis is carried out and discussed. The proposed formulas are found to be accurate for the prediction of the elastic modulus of NSC and HSC. The predictions made by the MEP-based models are more accurate than those obtained by the existing models.

Keyword : tangent elastic modulus, normal and high strength concrete, multi expression programming, compressive strength, formulation

How to Cite
Gandomi, A. H., Faramarzifar, A., Ghanad Rezaee, P., Asghari, A., & Talatahari, S. (2015). New design equations for elastic modulus of concrete using multi expression programming. Journal of Civil Engineering and Management, 21(6), 761-774. https://doi.org/10.3846/13923730.2014.893910
Published in Issue
Jun 9, 2015
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