In　this　paper,　three　precast　concrete　(PC)　frames　and　one　cast-in-situ　reinforced-concrete　(RC)　frame　were　cast　and　tested　to　investigate　the　load-resisting　mechanisms　of　emulative　PC　frames　with　various　reinforcing　details　to　resist　progressive　collapse.　In　the　beams　of　PC　frames,　the　top　reinforcement　was　continuous　without　curtailment　while　the　bottom　reinforcement　had　different　anchorage　strength.　Test　results　indicated　that,　in　the　event　of　middle　column　removal,　similar　to　RC　frame,　beam　action,　compressive　arch　action　(CAA),　and　tensile　catenary　action　(TCA)　could　be　developed　sequentially　in　PC　frames　with　emulative　connections,　PC　frames　with　sufficient　anchorage　strength　or　additional　bottom　U-shaped　bars　passing　through　the　middle　joint　could　obtain　similar　level　of　CAA　capacity　as　RC　frame.　However,　they　may　achieve　relatively　lower　TCA　capacity　due　to　higher　bond　strength　between　the　top　reinforcement　and　cast-in-situ　topping　layer　in　beams,　owing　to　higher　concrete　strength　in　the　topping　layer,　resulting　in　earlier　fracture　of　the　beam　top　reinforcements.　Conversely,　PC　frames　with　insufficient　anchorage　could　achieve　comparable　TCA　capacity　as　RC　frame.　However,　their　CAA　capacity　was　less　than　that　of　RC　frames　due　to　pulling-out　failure　of　bottom　reinforcements,　preventing　further　development　of　strain　hardening　at　beam　action　and　CAA　stages.　Based　on　test　results　and　analytical　studies,　it　was　found　that,　similar　to　RC　frames,　PC　frames　with　emulative　connections　could　provide　sufficient　rotational　capacity　to　ensure　development　of　tie-force　as　required　by　the　design　guidelines.　(C)　2021　American　Society　of　Civil　Engineers.