A　modified　curve-approximated　hysteretic　model　for　partially　concrete-filled　steel　tube　(PCFST)　bridge　piers　is　developed　based　on　the　previous　research　work.　The　proposed　model,　which　consists　of　a　series　of　quadratic　and　cubic　curves　and　takes　into　account　the　P-Delta　effect,　pinching　behavior　in　unloading-reloading　hysteretic　loops,　and　deterioration　of　strength　and　stiffness,　can　be　used　to　precisely　describe　complicated　hysteretic　behavior　of　cantilever-type　PCFST　bridge　piers.　Parameters　of　this　model　are　calibrated　on　the　basis　of　quasi-static　cyclic　test　results.　To　verify　the　validity　of　the　proposed　model,　a　total　of　12　pseudo-dynamic　tests　were　carried　out.　The　detailed　comparisons　of　different　seismic　performance　indices　between　experimental　and　numerical　results,　such　as　the　maximum　response　displacement,　the　residual　displacement,　and　the　amount　of　energy　dissipation,　indicated　that　the　proposed　model　can　be　an　acceptable　complementary　and　assisting　tool　for　the　nonlinear　seismic　response　assessment　of　PCFST　piers.