[1]王娟,王会娟,许耀群,等.单轴荷载作用下混凝土强度代表体尺寸定量研究[J].郑州大学学报(工学版),2018,39(01):12-17,28.[doi:10.13705/j.issn.1671-6833.2018.01.002]
　Wang Juan,Wang Huijuan,Xu Yaoqun,et al.Quantitative Study on the Representative Volume Element Size of Concrete Strength under Uniaxial Loading[J].Journal of Zhengzhou University (Engineering Science),2018,39(01):12-17,28.[doi:10.13705/j.issn.1671-6833.2018.01.002]
点击复制

单轴荷载作用下混凝土强度代表体尺寸定量研究()
分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
39卷
期数:
2018年01期
页码:
12-17,28
栏目:
出版日期:
2018-01-20

文章信息/Info

Title:
Quantitative Study on the Representative Volume Element Size of Concrete Strength under Uniaxial Loading
作者:
王娟; 王会娟; 许耀群; 武霄鹏
1.郑州大学水利与环境学院,河南郑州,450001;2.河南师范大学新联学院,河南郑州,450000
Author(s):
Wang Juan1; Wang Huijuan2; Xu Yaoqun1; Wu Xiaopeng1
1. School of Water Conservancy and Environment, Zhengzhou University, Zhengzhou, Henan, 450001; 2. Xinlian College, Henan Normal University, Zhengzhou, Henan, 450000
关键词:
混凝土; 代表体; 强度; 细观尺度; 定量分析
Keywords:
concrete; representative volume element; strength; meso-scale; quantitative study
DOI:
10.13705/j.issn.1671-6833.2018.01.002
文献标志码:
A
摘要:
为从细观层次研究混凝土宏观力学性能，提出了混凝土强度代表体定义，建立了基于统计特征的混凝土强度代表体尺寸确定方法。采用三维随机缺陷界面弹簧元模型，给出了确定单轴加载下的混凝土强度代表体尺寸的数值方法。分析了不同数值样本取值对混凝土单轴受拉及单轴抗压强度值离散性的影响规律，以及尺寸试件变化对混凝土拉伸及受压强度仿真结果稳定性的影响规律。研究结果表明：在单轴拉伸荷载和单轴压缩荷载作用下，混凝土强度代表体尺寸分别为5.0倍和6.5倍最大骨料粒径；与基于细观结构统计特征确定的混凝土几何代表体尺寸的相比，证明了本文所提方法的合理性。
Abstract:
Based on meso-numerical simulation technology, a new method was developed for the determination of the RVE (representative volume element) (RVE) of concrete. The uniaxial tensile and compressive strength of concrete specimens with various RVE size were calculated by means of the interfacial spring element model. Then the RVE size was determined quantitatively by analyzing the discreteness of concrete strength and the increase trend of concrete strength. Results showed that the RVE size for concrete uniaxial tensile and compressive strength were 5 times and 6.5 times of maximum aggregate diameter of concrete respectively, which were close to the RVE sizes for concrete micro-structure. This study can enrich the numerical methods for strength analysis of concrete and lay a foundation for multi-scale analysis of concrete.

相似文献/References:

[1]孙增智,田俊壮,杨凯,等.干湿循环作用下盐分对桥墩混凝土耐久性影响实验研究[J].郑州大学学报(工学版),2016,37(05):6.[doi:10.13705/j.issn.1671-6833.2016.05.002]
　Sun Zengzhi,Tian Junzhuang,Yang Kai,et al.Effect of Salt on Concrete Durability Under Dry-wet Cycle[J].Journal of Zhengzhou University (Engineering Science),2016,37(01):6.[doi:10.13705/j.issn.1671-6833.2016.05.002]
[2]赵娟,李倍.气候变化对中原地区桥梁碳化寿命影响研究[J].郑州大学学报(工学版),2016,37(06):68.[doi:10.13705/j.issn.1671-6833.2016.06.021]
　Zhao Juan,Li Bei.Research on Bridge Carbonation Life Influenced by Climate Change in Central Plains[J].Journal of Zhengzhou University (Engineering Science),2016,37(01):68.[doi:10.13705/j.issn.1671-6833.2016.06.021]
[3]付昌会,冯忠绪,张磊..搅拌方式对混凝土含气量及孔结构的影响[J].郑州大学学报(工学版),2011,32(02):42.[doi:10.3969/j.issn.1671-6833.2011.02.011]
[4]刘银芳,陈国荣,尤国英,等.基于microGA和有限元的混凝土坝热学参数反分析[J].郑州大学学报(工学版),2011,32(06):63.[doi:10.3969/j.issn.1671-6833.2011.06.015]
[5]曾力,朱蕴东,赵卓..基于渗透性的混凝土力学和耐久性能指标相关性试验[J].郑州大学学报(工学版),2013,34(01):1.[doi:10.3969/j.issn.1671-6833.2013.01.001]
[6]杨卫忠,王云莉..一种新的混凝土二维强度准则[J].郑州大学学报(工学版),2008,29(04):120.[doi:10.3969/j.issn.1671-6833.2008.04.028]
[7]杨卫忠,樊濬..混凝土单轴受压本构模型及其应用[J].郑州大学学报(工学版),2006,27(01):1.[doi:10.3969/j.issn.1671-6833.2006.01.001]
　Yang Weizhong,Fan Huan.Concrete uniaxial compression constitutive model and its application[J].Journal of Zhengzhou University (Engineering Science),2006,27(01):1.[doi:10.3969/j.issn.1671-6833.2006.01.001]
[8]程红强,高丹盈,张启明..老混凝土表面粗糙度的一种简单测定法[J].郑州大学学报(工学版),2006,27(01):24.[doi:10.3969/j.issn.1671-6833.2006.01.006]
　CHENG Hongqiang,GAO Danying,Zhang Qiming.A simple method for determining the surface roughness of old concrete[J].Journal of Zhengzhou University (Engineering Science),2006,27(01):24.[doi:10.3969/j.issn.1671-6833.2006.01.006]
[9]谢晓鹏,高丹盈,赵军,等.碳化钢纤维混凝土弯折性能的试验研究[J].郑州大学学报(工学版),2006,27(02):5.[doi:10.3969/j.issn.1671-6833.2006.02.002]
　XIE Xiaopeng,GAO Danying,ZHAO Jun,et al.Experimental study on bending properties of carbonized steel fiber concrete[J].Journal of Zhengzhou University (Engineering Science),2006,27(01):5.[doi:10.3969/j.issn.1671-6833.2006.02.002]
[10]高丹盈,朱海堂,赵军,等.冻融后钢纤维混凝土力学性能的试验研究[J].郑州大学学报(工学版),2005,26(01):1.[doi:10.3969/j.issn.1671-6833.2005.01.001]
　GAO Danying,ZHU Haiting,ZHAO Jun,et al.Experimental study on mechanical properties of steel fiber concrete after freeze-thaw[J].Journal of Zhengzhou University (Engineering Science),2005,26(01):1.[doi:10.3969/j.issn.1671-6833.2005.01.001]

更新日期/Last Update: 2018-01-23