Abstract
In order to study the compressive performance of circular steel tube recycled concrete columns, four circular steel tube recycled concrete columns are designed and manufactured, and subjected to a monotonic static compression test. Consider the eccentricity and the slenderness ratio, this paper observes the whole process of the specimen and the failure mode, and analyses the ultimate bearing capacity, deformation curve, load-deformation relationship, and load-strain relationship. The experimental research shows that the failure process and failure mode of the round steel tube recycled concrete column are similar to those of the ordinary round steel tube concrete column. Similarly, the bearing capacity of the test piece decreases with the increase of the slenderness ratio and eccentricity, and the ultimate failure form is mainly the overall instability failure.
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