To　investigate　the　spatial　performance　of　concrete　filled　steel　tubular　arch　with　corrugated　steel　webs,　a　static　loading　test　has　been　conducted　on　an　arch　with　a　clear　span　of　6m　subjected　to　in-plane　and　out-of-plane　loading　simultaneously.　The　structural　behaviors　such　as　load-displacement　relation,　ductility,　distribution　of　strains　in　tubes　and　corrugated　webs,　were　explored.　Based　on　the　results,　it　is　demonstrated　that　the　lateral　deformation　is　the　critical　factor　for　the　ultimate　load-carrying　capacity　of　the　arch.　In　the　whole　process　of　test　for　the　tubular　arch,　material　non-linearity　is　dominant　and　geometrical　non-linearity　is　subordinate.　It　could　be　concluded　that　the　CFST-CSW　arch　shows　good　structural　behavior　and　may　be　applicable　in　practice.　©　(2012)　Trans　Tech　Publications.