To　investigate　the　effects　of　reinforcement　type,　longitudinal　reinforcement　ratio,　and　the　spacing　and　size　of　glass　fiber-reinforced　polymer　(GFRP)　spirals　on　the　axial　compressive　behavior　of　concrete　columns　reinforced　with　polyvinyl　alcohol　(PVA)　fibers　and　GFRP　bars　and　spirals,　in　this　study,　seven　columns　reinforced　with　GFRP　bars　and　spirals,　one　column　reinforced　with　PVA　steel　bars　and　spirals　and　one　column　with　no　PVA　reinforcement　were　tested　under　axial　compression.　The　entire　loading　process　and　failure　modes　of　the　specimens　were　investigated.　Equations　of　the　axial　bearing　capacity,　peak　stress,　and　peak　strain　were　obtained　based　on　experimental　data,　and　a　new　axial　stress-strain　constitutive　model　applicable　to　the　concrete　confined　by　GFRP　spirals　is　proposed.　The　test　results　indicate　that　the　entire　loading　process　and　GFRP　columns　failure　modes　are　similar　to　those　of　a　steel　column.　The　bearing　capacity　was　significantly　improved　by　using　a　higher　longitudinal　reinforcement　ratio,　and　the　ductility　was　significantly　improved　by　using　smaller　GFRP　spirals　with　closer　spacing　at　a　constant　volumetric　stirrup　ratio;　however,　the　confinement　efficiency　could　not　be　significantly　improved.　©　2018,　Editorial　Department　of　Journal　of　HEU.　All　right　reserved.