The　load　test　and　finite　element　model　parameter　analysis　are　conducted　to　explore　the　static　behavior　of　a　segmental　precast　assembled　prestressed　concrete　cap　beam　with　a　corbel　joint　structure,　and　the　influence　of　various　factors　on　its　mechanical　properties　is　discussed.　Interaction　at　the　corbel　joint　interface　is　simulated　by　using　viscous　contact　units.　Results　show　that　although　the　cracking　load　and　failure　mode　of　the　segmental　precast　assembly　are　basically　the　same　as　those　of　the　integral　precast　PC　cap　beam　model,　the　ultimate　bearing　capacity　and　ultimate　deformation　capacity　of　the　segmental　precast　assembly　have　reduced　significantly.　The　corbel　joint　interface　is　a　weak　link　in　the　segmental　precast　assembled　concrete　cap　beam.　The　concrete　in　the　tensile　zone　near　the　joint　interface　is　completely　separated　when　damaged.　In　addition,　the　setting　of　the　corbel　joint　position　should　be　considered　carefully　to　reduce　the　conflict　between　the　maximum　lifting　weight　and　the　ultimate　bearing　capacity　of　the　cap　beam.　Increasing　the　number　of　prestressed　tendons　or　the　section　height　of　the　cap　beam　is　an　effective　measure　to　improve　the　ultimate　bearing　capacity　of　segmental　precast　assembled　concrete　cap　beams　with　corbel　joints.　©　2023　Editorial　Board　of　Journal　of　Harbin　Engineering.　All　rights　reserved.