The　present　study　proposes　a　new-type　all-bolted　connection　that　can　be　used　to　connect　trusses　to　columns　and　columns　to　columns　on　site　in　modularized　prefabricated　multi-rise　and　high-rise　steel　structures.　The　proposed　connection　connects　columns　through　flanges,　connects　trusses　to　columns　through　cover　plates　that　extend　from　the　flanges　and　through　vertical　connecting　plates　and　joint　flitches.　The　stiffness　of　the　connection　can　be　controlled　by.adjusting　the　number　or　size　of　the　bolts　and　undergoes　step-like　change　as　the　load　changes.　Therefore,　the　connection　can　be　rigid　during　weak　earthquake,　while　the　cover　plates　can　slip　relative　to　the　chord　members　during　strong　earthquake,　thereby　dissipating　energy.　The　FEA　results　was　compared　with　experimental　results　and　showed　good　agreement　at　all　stages　of　loading,　then　the　static　performance　of　six　connections　with　different　friction　coefficient　or　size　of　components　were　studied　by　FEA.　The　FEA　results　were　used　to　determine　mechanical　properties　of　the　connections　that　were　difficult　to　obtain　from　the　tests,　such　as　the　changing　rule　of　the　bolt　tension,　the　stress　distribution　of　bolt,　the　contact　force　on　various　contact　surface,　and　the　pressure　on　the　wall　of　bolt　hole,　as　well　as　the　effects　of　friction　coefficient　on　the　performance　of　the　connections.　The　mechanical　model　of　the　connection　was　established　and　the　mechanical　mechanism　of　the　connection　was　got.　Furthermore,　simplified　calculating　formulas　for　the　connection　under　slip　state,　yield　state　and　ultimate　state　were　proposed　respectively.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.