徐变对钢管混凝土轴心受压短柱紧箍应力影响分析

Influence of creep on confining stress of axially compressed concrete filled steel tubular short columns

在对钢管混凝土轴心受压短柱的徐变进行分析的基础上 ,进一步考虑了徐变对其紧箍应力的影响。构造了徐变过程中计算构件紧箍应力的方法 ,应用此方法首次得到了构件的紧箍应力在徐变过程中的变化趋势 ,与试验结果对比证明本方法是正确。

In this paper, based on the creep analysis of axially compressed CFST(Concrete Filled Steel Tubular) short columnc, the effect of creep on confining stress was considered and an effective method to calculate confining stress in the procedure of creep was constructed. The change trend of confining stress in the course of creep obtained by this method was proved by the conclusion of experiments.