In　order　to　investigate　the　static　performances　of　segmental　prefabricated　large-cantilevered　PC　cap　beams　with　different　epoxy　joints　under　the　combined　action　of　bending　and　shear　internal　forcesan　integral　precast　large-cantilevered　PC　cap　beam　model　and　3　segmental　prefabricated　large-cantilevered　PC　cap　beam　models　with　large　key　teethsmall　key　teeth　and　corbel　joints　respectivelythe　scale　of　each　model　is　15were　designed　and　manufactured　based　on　a　practical　engineering.　The　full-process　static　loading　tests　of　the　four　models　were　conductedand　the　key　results　such　as　cracking　loadsultimate　load　capacitiesdistributions　of　concrete　strainsdeflectionsand　maximum　crack　widths　of　the　cap　beams　were　obtained.　The　test　results　show　that　the　crack　distributions　of　the　segmental　prefabricated　models　are　basically　the　same　as　that　of　the　integral　prefabricated　modeland　cracks　in　the　cap　beams　of　all　test　models　are　sparse　and　wide　during　failurethe　failure　modes　of　all　test　models　are　flexural　failurethe　cracking　load　of　the　cap　beam　model　with　large　key　teeth　or　corbel　joint　is　the　same　as　that　of　the　integral　cap　beam　modelwhile　the　cracking　load　of　the　cap　beam　model　with　small　key　teeth　joint　is　only　81%　of　that　of　the　integral　cap　beam　modelthe　ultimate　bearing　capacities　of　the　cap　beam　models　with　different　epoxy　joints　are　significantly　lower　than　that　of　the　integral　cap　beam　modelamong　segmental　precast　modelsthe　ultimate　bearing　capacity　of　the　cap　beam　model　with　corbel　joint　is　the　largestwhich　is　about　84%　of　that　of　the　integral　cap　beam　model　in　terms　of　ultimate　deformation　capacity　the　ultimate　displacement　of　the　cap　beam　model　with　corbel　joint　reaches　75%　of　that　of　the　integral　cap　beam　modelwhile　the　ultimate　displacement　of　the　model　with　large　or　small　key　teeth　joint　is　lower　than　50%　of　the　integral　cap　beam　model.　From　the　test　results　of　static　performances　and　construction　performancethe　corbel　joint　is　a　more　reasonable　epoxy　joint　recommended　for　segmental　prefabricated　large-cantilevered　PC　cap　beams.　©　2022　Science　Press.　All　rights　reserved.