Civil Engineering Faculty Research

Title

New Design Equations for Elastic Modulus of Concrete Using Multi Expression Programming

Document Type

Article

Publication Date

Summer 6-9-2015

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.

Publication Title

Journal of Civil Engineering and Management

Volume

21

Issue

6

First Page

761

Last Page

774