中文摘要：

为提高既有混凝土收缩徐变预测模型在我国的适用性,收集了国内50组收缩试验数据和121组徐变试验数据,对比分析了既有B3,B4,B4s和CEB10模型的计算结果与试验结果差异性,并对B3模型进行了修正。研究结果表明：既有预测模型对我国收缩应变数据的预测效果较差;除CEB10模型外,B3,B4和B4s模型均高估了混凝土的徐变应变;修正的B3模型计算结果与试验结果吻合较好,能较好地用于我国混凝土的收缩徐变计算。

英文摘要：

In order to improve the applicability of the existing prediction model of concrete shrinkage and creep inC hina, 50 sets of shrinkage test data and 121 sets of creep test data were collected. The calculated results of B3, B4,B4s and C EB10 models were analyzed and compared with test results, and the B3 model was modif ied. The resultsshow that the existing prediction model has a poor prediction effect on the shrinkage strain data in C hina. Except forthe CEB10 model, the B3, B4 and B4s models overestimate the creep strain of the concrete. T he calculated results ofthe modif ied B3 model are in agreement with the experimental results, and it can be better used for the shrinkage andcreep calculation of concrete in China.