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

Figure 5

Hysteresis curves of specimens. (a) PTRC-1. (b) PURC-1. (c) PURC-2 and PURC-p3. (d) PURC-4.

(a)

(b)

(c)

(d)

(e)