The　use　of　fiber-reinforced　polymer　(FRP)　bars　as　a　substitute　for　steel　bars　in　concrete　engineering　structures　is　becoming　increasingly　popular.　However,　the　impact　resistance　of　concrete　columns　reinforced　with　GFRP　bars　(GFRP-RC)　are　still　not　clear　enough.　In　this　study,　impact　models　for　both　reinforced　concrete　(RC)　column　and　GFRP-RC　column　were　generated　through　finite　element　(FE)　software.　Subsequently,　the　accuracy　and　effectiveness　of　these　simulations　were　confirmed　by　comparing　the　simulation　results　with　experimental　data.　Following　this　validation,　the　methodology　was　employed　to　analyze　the　impact　performance　of　GFRP-RC　columns　having　varying　slenderness　ratios.　In　addition,　the　effect　of　impact　locations　was　discussed.　The　results　show　that　the　peak　impact　force　of　GFRP-RC　and　RC　columns　with　different　slenderness　ratios　and　impact　locations　are　similar,　while　the　peak　displacement　and　impact　duration　gradually　increase　with　the　increase　in　slenderness　ratio.　RC　columns　have　a　higher　increase　in　impact　duration　than　GFPR-RC　columns.　Impact　duration　and　peak　displacement　tend　to　increase　as　the　impact　location　gets　closer　to　midspan.　Shorter　GFPR-RC　columns　fail　along　their　entire　height,　while　longer　GFPR-RC　columns　tend　to　have　local　failure　around　the　impact　location,　column　foot,　and　column　top.　The　failure　mode　of　GFPR-RC　columns　is　similar　for　impact　locations　ranging　from　h/8　to　h/4,　where　the　column　failure　occurs　at　the　top　and　extends　from　the　impact　location　to　the　column　foot.　At　an　impact　location　of　h/2,　GFPR-RC　column　failure　occurs　at　all　these　three　positions.　The　impact　damage　in　shorter　GFPR-RC　columns　is　more　severe　compared　to　longer　ones,　resulting　in　a　significant　reduction　of　axial　bearing　capacity.　Finally,　an　empirical　model　to　predict　the　maximum　deflection　considering　the　effect　of　slenderness　ratio　and　impact　location　was　developed.　©　2024　Institution　of　Structural　Engineers