In　order　to　give　full　play　to　the　seismic　potential　of　the　movable　support　pier　and　improve　the　overall　longitudinal　syner‑　gistic　effect　of　the　continuous　girder　bridge，based　on　the　principle　of　functional　separation　and　synergistic　force，a　new　type　of　mass　rotation　wrap　rope　device　is　proposed　based　on　the　mechanism　of　wrap　rope.　Taking　a　typical　three-span　continuous　girder　bridge　as　an　example，the　shaking　table　test　is　carried　out　by　inputting　actual　seismic　waves　with　different　seismic　spectrum　charac‑　teristics　and　intensity　as　excitation，the　seismic　response　with　equal　pier　height　model　and　unequal　pier　height　model　are　analyzed　to　explore　the　synergistic　force　and　shock　absorption　effect　of　the　device　on　the　continuous　girder　bridge.　Through　the　test　results　of　the　response　of　the　key　positions　of　the　structure　such　as　the　acceleration　response，displacement　response　and　strain　response，it　can　be　seen　that　the　effect　of　the　device　on　the　movable　bearing　pier　participating　in　the　overall　longitudinal　synergistic　force　of　the　continuous　girder　bridge　is　more　obvious，and　with　the　increase　of　the　ground　motion　input　intensity，the　synergistic　effect　of　the　de‑　vice　becomes　more　and　more　prominent，the　design　intention　of　the　device　is　realized.　At　the　same　time，the　effect　of　the　device　is　related　to　factors　such　as　the　number　of　wrap　rope　turns　of　the　device　itself，the　pier　height　of　the　movable　bearing　pier，etc.　The　design　needs　to　determine　the　reasonable　design　parameters　of　the　device　according　to　different　factors　such　as　the　pier　height　to　achieve　the　best　effect　of　the　device.　©　2024　Nanjing　University　of　Aeronautics　an　Astronautics.　All　rights　reserved.