摘  要：为探究钢管混凝土短柱的收缩变形并补偿收缩，进行了2个钢管混凝土短柱收缩试验和5个不同膨胀剂掺量收缩补偿试验研究。试验结果表明，普通钢管混凝土在密封状态下，早期发生膨胀，之后由于水化收缩、徐变收缩及温度收缩等使混凝土发生收缩现象；径向收缩的影响会使钢管对混凝土的紧箍力推迟产生，影响钢管混凝土的力学性能；膨胀剂掺量为12%时，能够完全补偿混凝土的收缩，使核心混凝土与钢管壁紧密结合，且承载力高、变形小，为最佳掺量。

Abstract: In order to study the shrinkage deformation of concrete filled steel tubular short column and shrinkage compensation, two shrinkage tests of concrete filled steel tube short columns and five different expansive agent dosage test of shrinkage-compensated were carried out. The experimental results indicate that the ordinary concrete filled steel tube expands at the early stage under sealed condition, then shrinks due to hydration shrinkage, creep shrinkage and temperature contraction. The effect of radial shrinkage will delay the tightening force of the steel pipe to the concrete and affect the mechanical properties of the concrete-filled steel tube. When the  dosage is 12%, the shrinkage of the concrete can be completely compensated, the core concrete is tightly combined with the steel pipe wall, the bearing capacity is high and the deformation is small, which is the best dosage.