The second set of systems covered in this synopsis is self-centering systems. Post-tensioning (PT) tendons in concrete frames, damage controlled self-centering structures, damage-free seismic resistant special concentrically braced frames, self-centering column bases, and self-centering moment resisting frames are included in this summary.

PT tendon applications in concrete frames were examined by Walsh and Kurama (2008). The inclusion of unbonded tendons in structures reduced concrete cracking and delayed strand yielding. Moreover, this structure offers self-centering capability through PT force.

Roke et al. (2009) examined damage-free SC-CBFs. This frame configuration aimed to minimize structural damage under seismic loading. Column base connections permitted the columns to uplift at the foundation. Gravity loads and PT steel resisted column uplift and provided a restoring force to the structure after uplift.