To　investigate　the　influence　of　setting　studs　and　tie　bars　on　the　bond　behavior　of　high-strength　concrete-filled　circular　steel　tube　(HSCFCST),　15　large-size　HSCFCST　specimens　with　5　different　constructions　(with　no　constructions,　with　built-in　studs,　with　built-in　tie　bars,　and　so　on)　under　push-out　tests　were　designed,　where　material　for　concrete　included　C60,　C70　normal　concrete　and　C60　recycled　aggregate　concrete　(RAC).Through　pushing　forces,　slip　displacements　and　steel　tube　strains,　the　influence　of　different　factors　on　the　bond　behavior　was　analyzed,　and　the　slip　failure　mechanism　of　the　whole　process　was　expounded.The　calculation　method　of　studs　and　tie　bars　shear　bearing　capacity　and　the　interface　bond-slip　constitutive　relationship　were　obtained.The　experiments　revealed　that:the　bond　strength　of　HSCFCST　can　be　greatly　improved　by　studs　or　tie　bars　constructions,　the　bond　behavior　of　RAC　is　better　than　ordinary　concrete　under　the　same　strength　without　constructions,　the　shear　calculation　method　of　studs　or　tie　bars　provided　is　in　good　agreement　with　the　test.　©　2020,　Editorial　Board　of　Journal　of　Huazhong　University　of　Science　and　Technology.　All　right　reserved.