Seismic　isolation　technology　has　been　widely　used　to　improve　the　seismic　performance　of　multi￣span　bridges.　However,　traditional　isolation　bearings　are　prone　to　large　residual　displacement,　high　bottom　shear　level　and　insufficient　limit　capacity　under　the　influence　of　near￣field　pulse　ground　motions.　At　present,　the　research　to　solve　the　above　problems　can　be　divided　into　two　directions:　one　is　shape　memory　alloy　(SMA)　isolation　bearings　which　play　a　good　role　in　controlling　the　peak　displacement　and　residual　displacement,　but　it　will　increase　the　internal　force　demand;　the　other　is　negative　stiffness　device　(NSD)　isolation　bearings　which　can　effectively　reduce　the　internal　force　demand,　but　may　cause　large　residual　displacement.　In　this　paper,　based　on　28　near￣field　pulse　waves　from　the　database　of　Pacific　Earthquake　Engineering　Research　Center　(PEER),　the　seismic　isolation　performance　of　a　multi￣span　simple　supported　beam　bridge　with　gap　SMA　bearing　and　NSD　bearing　under　four　levels　(slight,　moderate,　extensive　and　collapse)　is　fully　evaluated.　On　this　basis,　combined　with　the　respective　advantages　of　SMA　and　NSD,　a　gap　SMA￣NSD￣FPB　isolation　bearing　is　proposed　and　its　isolation　performance　is　analyzed.　The　results　show　that　the　residual　deformation　caused　by　NSD　bearing　and　the　bottom　shear　caused　by　SMA　bearing　can　be　significantly　reduced　by　this　novel　bearing.　©　2023　Science　Press.　All　rights　reserved.