Collapse　resistance,　failure　modes　and　deformation　capacity　of　precast　concrete　(PC)　frames　with　monolithic　joints　under　large　deformation　of　progressive　collapse　are　significantly　influenced　by　the　damage　and　failure　of　connections　of　joints.　To　investigate　the　progressive　collapse　resistant　performance　of　PC　frame　structures,　three　1/3　scaled　beam-column　specimens　with　two　spans　were　designed,　and　tested　statically　with　an　equivalent　uniformly　distributed　load　(UDL).　The　specimens　were　composed　of　one　reinforced　concrete　(RC)　and　two　PC　beam-column　substructures　with　different　reinforcement　connections.　In　one　PC　specimen,　mechanical　sleeves　and　anchorage　plates　were　used　for　reinforcement　connections　in　beams　while　rebar　splices　by　grout-filled　coupling　sleeves　were　used　for　column　rebars.　In　the　other　PC　specimen,　beam　rebars　were　anchored　by　90°　hooks　and　column　rebars　were　connected　by　rebar　lapping　in　grout-filled　holes.　Test　results　show　that,　the　collapse　resistances　of　the　two　PC　specimens　under　compressive　arch　action　(CAA)　are　22.9%　and　20.2%　higher　than　that　of　the　RC　specimen,　owing　to　the　increase　of　the　strength　of　post-cast　concrete.　The　final　deformation　of　the　beams　is　curvilinear　under　UDL.　Hence,　under　such　a　deformation　mode,　the　higher　rotation　capacity　at　beam　ends　is　required　for　improving　the　overall　deformation　of　beams　to　satisfy　the　structural　deflection　demand　specified　by　T/CECS　392-2021＇Code　for　anti-collapse　design　of　building　structures＇.　At　the　peak　load　under　catenary　action　(CA),　the　horizontal　restrains　provided　by　the　adjacent　beams　could　effectively　limit　the　horizontal　deformation　of　columns　and　the　shear-slip　along　with　grouting　layers.　Analytical　models　were　developed　to　calculate　the　collapse　resistances　at　peak　of　CAA　and　CA.　Because　the　slips　at　the　grouting　layers　in　PC　specimens　decrease　the　constraint　to　the　beams,　the　collapse　resistances　contributed　by　the　CAA　of　PC　specimens　are　lower　than　that　of　the　RC　specimen.　According　to　the　energy　conservation　principle,　the　two　PC　specimens　exhibit　16.8%　and　18.8%　higher　dynamic　collapse　resistances　than　the　RC　specimen　due　to　the　larger　energy　dissipation　under　CAA,　respectively.　©　2022,　Editorial　Office　of　Journal　of　Building　Structures.　All　right　reserved.