To　solve　the　problem　of　the　insufficient　interface　bond　strength　of　concrete-filled　square　steel　tubes　(CFSSTs),　11　push-out　tests　of　large　high-strength　CFSST　specimens　with　different　constructions(such　as　studs,　vertical　ribs,　pulling　reinforcing　bars,　steel　partitions,　and　circular　ribs)were　carried　out.　Through　the　failure　characteristics,　load-slip　curves,　and　strains　of　each　specimen,　the　bond　strength,　energy　dissipation　capacity,　and　construction　efficiency　were　obtained.　The　sliding　failure　mechanism　of　different　constructions　was　revealed,　and　existing　shear　strength　calculation　methods　of　CFSST　with　studs　and　circular　ribs　were　assessed.　The　results　show　that　load-slip　curves　of　CFSST　specimens　with　no　construction　include　an　ascending　section　and　a　straight　section;　those　of　CFSSTs　with　built-in　vertical　construction　include　two　ascending　sections　with　different　slopes;　and　those　of　CFSST　with　shear　connectors　show　a　falling　section　after　the　peak　value.　Setting　circular　ribs,　vertical　ribs,　and　reinforcement　cage　can　multiply　the　bond　strength　by　11.2,　and　setting　both　steel　partitions　and　studs　can　multiply　the　energy　consumption　capacity　by　10.7;　studs　have　the　highest　construction　efficiency　in　improving　the　interface　bond　strength　of　CFSSTs,　and　circular　ribs　have　the　highest　construction　efficiency　in　improving　the　energy　dissipation　capacity.　Compared　with　the　summation　of　a　single　construction　test　value,　the　bond　strength　of　the　combination　of　studs　and　circular　ribs　increases　by　7.2%,　and　the　energy　consumption　decreases　by　3.2%.　Shear　strength　calculation　methods　of　studs　and　circular　ribs　are　more　conservative　than　test　results　and　can　provide　a　reference　for　engineering　design.　©　2021,　Editorial　Board　of　Journal　of　Tianjin　University(Science　and　Technology).　All　right　reserved.