用自洽方法计算混凝土的弹性模量  

Applying Self-Consistent Method to Calculate Concrete Modulus

作　　者：张庆华[1] 刘西拉[1] 朱振宇[1] 

机构地区：[1]上海交通大学建筑工程与力学学院,上海200030

出　　处：《上海交通大学学报》2001年第10期1503-1506,共4页Journal of Shanghai Jiaotong University

摘　　要：用自洽方法得到了混凝土弹性模量的均质化计算公式 ,该方法可以同时满足平衡条件和连续性条件 .对砂浆的弹性模量进行了数值计算 ,其结果与试验结果符合较好 ;对混凝土的弹性模量采用两种不同的计算模型进行了计算 .计算结果表明 ,第 1种模型的结果与试验结果的符合程度较第 2种模型稍高 .证明了用自洽方法计算混凝土或砂浆的弹性模量是可行的 .With self-consistent method, the formulation of concrete elastic modulus was obtained, which reflects the general elastic performance of materials. It depends not only on the microstructure of materials, but also on the internal strain distribution. The presented method complies with both the equilibrium law and the continuity law. The elastic modulus of mortar was numerically analysed by this formula. The calculation matches the experimental results very well. For calculation of the elastic modulus in concrete two analysis models are used. Compared with the experiment results, the former one is better than the latter one. It is shown that the consistent method is feasible. The presented method is a good example to bridge the gap between the meso-structure and macro performance of concrete material.

关 键 词：混凝土 自洽方法 弹性模量 

分 类 号：TU528.01[建筑科学—建筑技术科学]