Numeric alanalysis of size effect on mesol concrete random aggregate model
In order to research that statics properties of concrete cylinder sample are influenced by microconcrete material heterogeneity, by random aggregate models generated by different random number were established. By fixed aggregate size and constantly changing of the sample size, the concrete numerical model was simulated and Strength change of concrete samples was analyzed. So that strength influence of the aggregate location of the concrete random sample was study. Calculation shows that: the strength of concrete has been little effect by the aggregate random location, the size effect on concrete has been changed regularly, with the size effect ratio coefficient of aggregate and sample gradually increasing, the error square sum of strain was reduced and the brittlness of the samples becomes obvious.
size effect random aggregate model compressive strength error square sum of strain
Xinyu Liang Faning Dang
College of Hydroelectric Engineering Xian University of Technology Xian 710048,Shaanxi Province,P.R.China
国际会议
太原
英文
490-494
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）