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

Figure 6

Skeleton curves of specimens. (a) PTRC-1 and PURC-1. (b) PURC-1, PURC-2, and PURC-3. (c) PURC-1 and PURC-4.

(a)

(b)

(c)