Seismic　ground　faults　are　severe　hazards　for　buried　pipes.　To　explore　and　model　the　failure　mechanisms　of　segmented　pipes　crossing　faults,　a　centrifuge　test　of　a　socket-type　ductile　iron　pipe　crossing　a　strike-slip　fault　is　conducted.　In　the　test,　a　segmented　ductile　iron　pipe　with　five　segments　is　buried　in　a　soil　box.　Then,　at　a　centrifugal　gravity　level　of　30.7　g,　60　mm　ground　displacements　are　applied　through　translation　of　half　of　the　test　soil　box.　Thus,　a　2646.2　mm-diameter　pipe　with　a　length　of　27.4　m　subjected　to　a　1.84　m-long　strike-slip　fault　is　simulated.　The　responses　of　the　joint　deformation　and　the　pipe　strain　are　obtained.　Results　show　that　the　joint　deformation　is　the　main　response　of　the　pipes　subjected　to　strike-slip　faults,　the　joint　near　the　fault　trace　is　vulnerable,　the　pipe　strain　is　relatively　small,　and　the　peak　pipe　strain　occurs　at　a　certain　distance　from　the　fault.　Lastly,　a　theoretical　method　is　presented　to　obtain　the　joint　deformation　of　the　pipes　crossing　a　strike-slip　fault,　and　a　good　agreement　between　the　test　and　theoretical　results　is　observed.　The　test　can　be　a　benchmark　for　theoretical　and　numerical　models.　Meanwhile,　the　proposed　theoretical　method　has　clear　physical　mechanisms　and　can　obtain　the　pipe　joint　deformation　effectively.　©　2023　Institution　of　Structural　Engineers