Effect of Axial Compression Ratio on Seismic and Self-Centering Performance of Unbonded Prestressed Concrete Columns

Table 2

Axial compression ratios of specimens.

Specimen number	Axial compression ratio	Preloaded axial compression ratio	Applied axial compression ratio	Applied axial compression kN
PTRC-1	0.15	—	0.15	238.05
PURC-1	0.55	0.40	0.15	238.05
PURC-2	0.45	0.40	0.05	79.35
PURC-3	0.65	0.40	0.25	396.75
PURC-4	0.40	0.25	0.15	238.05