An　innovative　precast　segmental　bridge　column　(PSBC)　was　proposed　to　achieve　a　better　durability　performance　in　an　aggressive　coastal　environment,　which　was　reinforced　with　both　longitudinal　stainless　steel　(SS)　bars　and　glass　fiber　reinforced　polymer　(GFRP)　bars.　Four　3/20-scale　PSBCs　with　various　ratios　of　GFRP　to　SS　bars　were　tested　quasi-statically.　Test　results　showed　that　compared　to　SS-reinforced　PSBCs　(SR-PSBCs),　the　SS-GFRP-reinforced　PSBCs　(SFR-PSBCs)　exhibited　higher　displacement　ductility,　less　stiffness　degradation,　lower　postyield　stiffness　ratios,　and　smaller　residual　drift　ratios,　although　they　presented　lower　lateral　loading　capacity　and　energy　dissipation.　Increasing　the　ratio　of　longitudinal　GFRP　bar　to　SS　bar　in　SFR-PSBCs　resulted　in　higher　displacement　ductility　performance　and　more　gentle　stiffness　degradation　behavior.　Furthermore,　the　increase　of　axial　load　affects　the　seismic　behavior　of　SFR-PSBCs　in　an　unfavorable　way,　which　could　result　in　severer　damage,　significant　reduction　in　the　displacement　ductility,　faster　stiffness　degradation　beyond　the　peak　lateral　strength　point,　and　increase　in　the　residual　displacement.