To　clarify　and　improve　the　ability　of　fabricated　piers　with　socket　connection　to　resist　composite　loads　such　as　compression,　bending　and　torsion,　a　novel　socket　connection　method　for　prefabricated　piers　combining　grouting　sleeves　and　sockets　was　proposed　for　application　in　ordinary　cap.　The　damage　characteristics　and　hysteresis　energy　dissipation　performance　of　cast-in-place　piers,　fabricated　piers　with　grouting　sleeves,　fabricated　piers　with　sockets　and　fabricated　piers　with　novel　socket　connection　through　quasi-static　tests　under　compound　loads,　and　the　effect　of　socket　height　on　hysteresis　performance　was　analyzed　with　numerical　simulation,　and　its　application　feasibility　in　shallow　socket　connection　was　discussed.　The　results　show　that　the　failure　modes　of　the　four　specimens　are　the　bending-torsional　failures　dominated　by　bending　failure,　among　which　the　SU　specimen　has　a　slight　phenomenon　of　pulling　up,　while　the　corresponding　GSU　specimen　does　not　have　this　phenomenon,　which　is　close　to　the　RC　specimen.　The　development　trend　of　the　shear　force-pier　top　displacement　skeleton　curves　of　each　specimen　is　relatively　consistent.　Due　to　the　longitudinal　steel　bar　of　the　GSU　specimen　is　continuous,　it　has　better　overall　performance,　and　its　flexural　load　capacity　is　close　to　that　of　RC　specimen,　and　is　significantly　larger　than　that　of　SU　and　GS　specimens.　The　bending　hysteresis　energy　consumption　of　the　four　specimens　is　relatively　close.　The　torsional　bearing　capacity　of　the　GSU　specimen　with　the　depth　of　the　socket　is　ID　and　slightly　higher　than　that　of　the　RC　specimen,　and　is　significantly　greater　than　that　of　other　fabricated　pier　specimens.　The　torsional　stiffness,　ductility　coefficient　and　energy　dissipation　capacity　of　the　GSU　specimen　are　greater　than　that　of　the　other　three　piers.　When　the　depth　of　the　socket　is　0.　5　times　the　cross-section　width　of　the　specimen,　the　flexural　bearing　capacity　and　torsional　bearing　capacity　of　the　specimen　with　novel　socket　connection　are　higher　than　that　of　the　cast-in-place　RC　specimen,　which　has　a　good　ability　to　resist　compression,　bending　and　torsional　loads,　and　can　realize　shallow　socket　connections.　The　results　can　provide　an　experimental　basis　for　the　application　of　fabricated　piers　under　the　combined　action　of　compression,　bending　and　torsion.　©　2024　Chinese　Vibration　Engineering　Society.　All　rights　reserved.