无水泥方钢管粉煤灰混凝土中核心混凝土本构关系研究  

Study on constitutive relation of core cement-free fly-ash concrete of concrete-filled square steel tube

作　　者：彭杰[1] 张扬[1,2] 李四平[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]南阳理工学院土木工程学院,河南南阳473004

出　　处：《混凝土》2014年第4期38-39,43,共3页Concrete

基　　金：国家自然科学基金资助(51278298)

摘　　要：通过无水泥方钢管粉煤灰混凝土的轴压短柱试验,得到核心无水泥粉煤灰混凝土的应力应变关系曲线和解析表达式,并应用统计分析软件SPSS19.0进行特征值的回归分析,得到了无水泥方钢管粉煤灰混凝土中核心无水泥粉煤灰混凝土的本构关系。By the experiments of cement-free fly-ash concrete filled square steel tubular stub columns under axial compression,the stress-strain relationship curve of core cement-free fly-ash concrete was obtained.The analytic expression of the stress-strain relationship curve was also established.Through the regression analysis of eigenvalues using statistical analysis software SPSS 19.0, the constitutive re-lation of core cement-free fly-ash concrete of concrete-filled square steel tube was set up.

关 键 词：无水泥粉煤灰混凝土 钢管混凝土 本构关系 

分 类 号：TU528.59[建筑科学—建筑技术科学]