Empirical models and design codes in prediction of modulus of elasticity of concrete

作     者：Behnam VAKHSHOURI Shami NEJADI 

作者机构：Centre for Built Infrastructure ResearchUniversity of Technology SydneySydneyAustralia 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2019年第13卷第1期

页      面：38-48页

核心收录：

学科分类：1305[艺术学-设计学（可授艺术学、工学学位）] 08[工学] 0813[工学-建筑学] 0814[工学-土木工程] 

主　　题：modulus of elasticity normal strength normal weight concrete empirical models design codes compressive strength density 

摘      要：Modulus of Elasticity (MOE)is a key parameter in reinforced concrete design.It represents the stressstrain relationship in the elastic range and is used in the prediction of concrete structures.Out of range estimation of MOE in the existing codes of practice strongly affect the design and performance of the concrete structures.This study includes: (a)evaluation and comparison of the existing analytical models to estimating the MOE in normal strength concrete,and (b)proposing and verifying a new model.In addition,a wide range of experimental databases and empirical models to estimate the MOE from compressive strength and density of concrete are evaluated to verification of the proposed model. The results show underestimation of MOE of conventional concrete in majority of the existing models.Also,considering the consistency between density and mechanical properties of concrete,the predicted MOE in the models including density effect,are more compatible with the experimental results.