This　paper　presents　an　experimental　investigation　on　the　mechanical　behavior　of　pultruded　concrete-filled　GFRP　tubular　(CFGT)　short　columns　exposed　to　elevated　temperatures　under　axial　compressive　loading.　A　total　of　117　pultruded　CFGT　short　columns　subjected　to　different　elevated　temperatures　and　temperature　duration　were　axially　tested,　including　108　specimens　after　elevated　temperature　and　9　specimens　at　ambient　temperature　served　as　the　control　group.　The　main　variables　explored　in　this　paper　included　the　GFRP　tube　thickness,　concrete　compressive　strength,　elevated　temperature,　and　temperature　duration.　The　results　obtained　from　the　experiments　indicate　that　the　ultimate　strength　and　initial　stiffness　of　specimens　decrease　remarkably　with　the　increase　of　the　elevated　temperature,　while　the　ductility　of　specimens　is　enhanced　accordingly.　Especially,　the　elevated　temperature　causes　an　obvious　reduction　(about　37%)　in　the　ultimate　strength　of　specimens　when　it　exceeds　200　°C.　Among　the　four　main　variables,　the　elevated　temperature　exerts　the　most　significant　impacts　on　the　ultimate　strength　of　specimens,　the　GFRP　tube　thickness　and　concrete　compressive　strength　have　certain　positive　effects,　while　the　influence　of　temperature　duration　is　almost　negligible.　Based　on　the　experimental　results,　a　parameter　formula　for　the　calculation　of　the　ultimate　strength　of　pultruded　CFGT　short　columns　after　elevated　temperatures　is　proposed,　which　shows　great　accuracy　and　rationality　compared　with　the　test　results.　©　2020