A　new　type　of　double　tee　connection　with　short　slotted　holes　in　the　T-stub　stems　is　proposed　in　this　study.　Four　full-scale　double　tee　connection　assemblies　were　tested　under　cyclic　loading　and　the　test　results　are　compared　with　those　of　a　control　specimen　with　reduced　beam　section　connection.　The　effects　of　slot　length　of　the　bolt　holes　on　the　failure　mode,　bearing　capacity,　ductility,　energy　dissipation　of　the　connection,　and　the　possibility　of　protecting　the　beam　from　being　damaged　under　cyclic　loading　are　studied.　The　test　results　demonstrate　that　this　type　of　double　tee　connection　shows　excellent　seismic　performance　as　severe　plastic　deformation　develops　only　in　the　T-stubs.　The　slippage　of　the　bolts　in　the　slotted　holes　can　greatly　increase　the　rotation　capacity,　ductility　and　energy　dissipation　of　the　connection　to　resist　severe　earthquakes.　Furthermore,　the　small　movement　allowed　for　the　beam　end　can　prevent　or　reduce　the　risk　of　local　damage　progression　in　the　beam　flanges　and　web,　which　can　increase　the　post-earthquake　reparability　of　steel　structures　with　such　connections.　(C)　2018　Elsevier　Ltd.　All　rights　reserved.