The　damage　of　water-supply　pipelines　under　fault　rupture　primarily　concentrates　at　the　pipe　joints,　which　are　the　weakest　structural　links　of　the　pipelines.　Based　on　the　traditional　bell-socket　joint　of　water　supply　pipelines,　the　rubber　gasket　and　metal　limit　ring　are　introduced　in　the　joint　configuration,　and　a　new　type　of　anti-pullout　bell-spigot　is　proposed.　The　new　joint　allows　certain　tensile-compressive　and　rotational　deformations　before　the　service　limit　state　under　daily　operation.　When　the　axial　deformation　of　the　joint　reaches　a　certain　level,　a　self-locking　mechanism　is　triggered　to　prevent　the　joint　from　the　pullout　damage.　The　self-locked　joint　in　turn　leads　to　the　relative　movement　between　the　adjacent　pipe　segments　and　the　surrounding　soil,　and　forms　a　chain　effect,　which　effectively　overcomes　the　excessive　pipeline　deformation　caused　by　the　fault　dislocation.　To　assess　the　performance　of　water-supply　pipelines　incorporated　with　the　proposed　anti-pullout　bell-spigot　joint　under　strike-slip　fault,　the　influences　of　the　critical　factors　such　as　pipeline　burial　depth　and　pipeline-fault　angle　are　investigated　based　on　the　numerical　analyses　of　a　three-dimensional　nonlinear　pipe-soil　interaction　finite　element　model.　The　results　show　that　the　pipelines　incorporated　with　the　anti-pullout　bell-spigot　joint　can　accommodate　a　strike-slip　fault　displacement　4　times　of　that　for　a　traditional　joint,　and　its　failure　mode　of　the　joint　changes　from　the　pull-out　failure　to　the　excessive　bending　one.　Moreover,　for　a　shallowly　buried　pipeline　with　a　fault　crossing　angle　of　120°,　the　proposed　joint　can　most　effectively　improve　the　resistance　of　the　segmented　pipelines　against　strike-slip　fault　movement.　Overall,　improvement　of　the　axial　tensile　bearing　capacity　of　the　pipe　joint　is　the　key　to　improve　the　performance　of　segmented　pipelines　subjected　to　large　ground　deformation.　©　2023　Chinese　Society　of　Civil　Engineering.　All　rights　reserved.