Extensive　studies　have　demonstrated　that　confining　a　concrete　column　by　large　rupture　strain　fiber　reinforced　polymer　(LRS　FRP)　composites　can　increase　significantly　its　ultimate　axial　strength　and　ductility.　For　finite　element　analysis　of　such　passively　confined　concrete　columns　by　plasticity-based　approaches,　the　plastic　dilation　angle　must　be　quantified.　For　LRS-FRP　confined　concrete　column,　by　increasing　the　lateral　strain,　the　rate　of　confinement　pressure　is　nonlinear　compared　to　the　linear　rate　provided　by　conventional　FRPs　(i.e.,　carbon　FRP,　glass　FRP　and　aramid　FRP),　due　to　the　bilinear　tensile　stress-strain　nature　of　the　LRS　FRP　material.　This　will　cause　the　dilation　behavior　of　LRS-FRP　confined　concrete　to　be　substantially　different　from　that　of　conventional　FRP　confined　concrete　columns.　This　study　uses　the　cyclic　compression　tests　of　LRS　FRP-confined　cylindrical　concrete　columns　to　understand　how　the　nonlinear　confinement　pressure　will　affect　the　concrete　loading　paths　in　terms　of　the　change　in　the　plastic　dilation　angles.　Axial　and　lateral　plastic　strains　obtained　in　cyclic　tests　are　used　for　quantifying　the　plastic　dilation　angle　of　the　confined　concrete.　Compared　to　conventional　FRPs,　it　is　revealed　that　for　LRS　FRP　confinement　the　plastic　dilation　angle　decreases　by　a　steeper　rate　as　a　function　of　confinement　lateral　stiffness　ratio.　Also,　the　plastic　dilation　angle　shows　a　different　style　as　a　function　of　axial　plastic　strain.　For　LRS　FRP　confinement　the　peak　of　plastic　dilation　angle　occurs　around　the　axial　plastic　strain　of　2%　which　is　substantially　larger　than　that　of　conventional　FRP　confinement.　These　observations　are　used　to　perform　finite　element　(FE)　analysis　of　LRS　FRP-confined　concrete　columns　based　on　the　ABAQUS　software.　With　the　employment　of　the　concrete　damage　plasticity　model　(CDPM),　the　FE　model　can　predict　successfully　the　axial　stress-strain　relationships　of　LRS　FRP-confined　concrete.　©　2022,　The　Author(s),　under　exclusive　license　to　Springer　Nature　Switzerland　AG.