钢管混凝土徐变预测模式的对比分析

Comparative Analysis on Creeping Prediction Model of Concrete Filled Steel Tube

针对钢管混凝土的徐变特性,对比分析了几种混凝土徐变模式在计算钢管混凝土徐变效应时的精度。结果表明,B3模式计算结果与试验结果吻合度最好,且考虑的因素最为全面,可用于钢管混凝土构件的徐变计算。

Various prediction models are developed to predict the creep effect of concrete filled steel tube. The precisions in calculating different creep of the concrete filled steel tube by the above models are compared and analyzed. The study results show that the creep of the concrete by B3 model is closest to the experimental results, and the almost all factors are comprehensively considered. So the B3 model can be used to calculate the creep of the concrete filled steel tube.