Shape　memory　alloy　(SMA)　as　a　high-performance　material　with　intelligent　properties,　has　been　recognized　as　a　promising　alternative　solution　for　achieving　self-centering　of　the　structure.　In　this　study,　based　on　the　excellent　characteristics　of　SMA,　SMA　L-shaped　plate　was　developed　and　applied　to　install　on　the　rocking　interface　of　the　rocking　column　to　enhance　the　seismic　resilience,　and　the　seismic　performance　of　the　self-centering　rocking　columns　with　SMA　L-shaped　plates　was　investigated　through　experiment　and　numerical　simulation.　To　this　end,　the　mechanical　properties　of　SMA　plate　were　firstly　investigated　experimentally.　Then　the　quasi-static　cyclic　loading　tests　of　the　rocking　column　with　SMA　L-shaped　plates　were　carried　out,　and　its　hysteresis　behavior　was　investigated　under　different　loading　protocols　with　varying　displacement　amplitudes.　For　comparison,　a　rocking　column　with　steel　L-shaped　plates　was　also　tested.　The　experimental　results　showed　that　the　rocking　column　with　SMA　L-shaped　plates　exhibited　excellent　flag-shape　hysteresis　behavior　with　satisfactory　self-centering　ability　and　stable　energy　dissipation　capacity,　and　owned　a　large　deformation　capacity.　Subsequently,　the　dynamic　responses　of　the　self-centering　rocking　column　with　SMA　L-shaped　plates　were　investigated　by　numerical　simulation.　It　is　found　that　compared　to　the　steel　L-shaped　plates,　the　SMA　L-shaped　plates　can　effectively　reduce　the　residual　displacement　responses　of　the　rocking　column　and　quickly　restore　to　normal　operation.　©　2024