Seismic Damage Behavior of Aeolian Sand Concrete Columns with an Inner Square Steel Tube

Table 1

Characteristics of the seven specimens.

Specimens	PC1	SC1	SC2	SC3	TSC1	TSC2	TSC3
Axial compression ratio	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Shear span ratio	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Replacement percentage of aeolian sand (%)	0	10	20	30	10	20	30
Inner steel tube	No	No	No	No	Yes	Yes	Yes