混凝土徐变度及应力松弛系数的估算方法综述与建议

Prediction of creep and stress relaxation coefficients of massive concrete

本文在收集国内外有关资料的基础上,对混凝土徐变度及应力松弛系数的估算方法进行了综合评述,提出了估算我国水工大体积混凝土徐变度及应力松弛系数的数学模型,并根据国内所进行的大量徐变试验资料进行统计分析,用优化方法确定了公式中的各参数。

This paper reviews the methods of predicting the creep and stress relaxation coefficients of concrete, and presents the mathematical model for the prediction of the creep and stress relaxation coefficients of massive concrete.According to the statistical analysis of the experimental data obtained in our country, we have determined each parameter in the formulas on the basis of optimization.