【摘要】 在《建筑结构设计统一标准》GBJ68 84对普通混凝土材料性能参数统计的基础上,从统计意义上推断出了C50～C80级高强混凝土的材料性能统计参数.C50、C60、C70、C80的材料性能不定性均值分别为1.33、1.29、1.26、1.23,材料性能不定性变异系数分别为0.14、0.12、0.10、0.09.根据材料性能统计参数推断结果分析了这种方法的合理性和优越性.图3,表7,参10.更多还原

【Abstract】 According to statistic parameters of material properties of common concretes by unified standard for design of building structures GBJ68-84 and based on statistical significance,material-property statistics of C50～C80 concretes were calculated and the result is that average values of material-property variabilities of C50,C60,C70,C80 concrete are respectively 1.33,1.29,1.26,1.23 and variation factors are respectively 0.14,0.12,0.10,0.09. Finally, the rationality and superiority of this kind of method were discussed.3figs.,7tabs.,10refs.更多还原