通过工程实际加载试验,完成了必要的数据收集,绘制曲线,进行了差异壁厚的钢管管壁处及核心混凝土的应力-应变分析,得出了微膨胀混凝土受力屈服的变异趋势,对采用钢管混凝土的拱桥受力屈服进行了有效的预测。 Through the actual loading test of the project, the necessary data collection and drawing curves were completed, the stress-strain analysis of steel pipe wall and core concrete with different wall thickness were conducted, and the variation trend of yield stress of micro-expansive concrete was obtained. The CFST arch bridge is effectively predicted by yielding.