提出了一种轻钢-钢纤维再生混凝土组合柱，为研究其轴心受压性能，设计了5组不同构造的短柱试件进行轴压试验，包括1组型钢试件和4组组合柱试件。以截面构造、钢纤维体积率和再生混凝土强度为变化参数，研究不同参数对组合柱破坏特征、荷载-位移曲线、承载力、刚度、延性的影响。结果表明：提出的轻钢-钢纤维再生混凝土组合短柱可以提高轻钢柱的稳定性能，并且能显著提高轻钢柱的承载能力；轻钢-钢纤维再生混凝土组合短柱的承载能力随着钢纤维体积率的增加而提高，钢纤维对再生混凝土裂缝的发展起到约束作用，且能降低试件的损伤程度和刚度的退化程度；轻钢-钢纤维再生混凝土组合短柱的承载能力随着再生混凝土强度的提高而提高，但延性会相应降低。在参考规范后，建立了适用于轻钢-钢纤维再生混凝土组合短柱的受压承载力计算公式。

A light steel-steel fiber recycled concrete composite column （SFRC composite column） was proposed. In order to study the axial compression performance of the composite column， five groups of short column specimens with varying configuration were tested， including one group of steel column specimens and four groups of composite column specimens. The effects on the failure characteristics， load-displacement curves， bearing capacity， stiffness and ductility of composite columns were studied with the parameters of section configuration， steel fiber content and recycled concrete strength. The results indicate that the SFRC composite column enhances the stability of the light steel column and substantially increases its bearing capacity. The bearing capacity of SFRC composite column increases with the addition of steel fiber. Steel fiber can restrain the crack development of recycled concrete and reduce the damage and stiffness degradation of specimens. The bearing capacity of composite column increases with the increase of recycled concrete strength， but the ductility decreases accordingly. A formula for calculating the compressive bearing capacity of SFRC composite short column has been established based on the code.