Precast　piers　have　been　extensively　investigated　and　applied　in　low　seismic　intensity　areas,　owing　to　the　faster　construction　speed,　limited　traffic　interruption,　and　environmental　friendliness.　However,　few　studies　and　engineering　practices　of　the　precast　double-column　piers　(PDPs)　located　in　high-intensity　seismic　areas　have　been　reported.　Therefore,　in　this　study,　a　novel　socket　connection　filled　with　ultra-high-performance　concrete　(UHPC)　was　proposed　for　the　PDPs.　The　socket　connections　with　concrete　filled　steel　tube　(CFST)　are　used　to　enhance　the　strength　of　the　column-cap　beam　joints,　at　the　same　time　the　socket　connections　with　the　tooth-shaped　shear　keys　are　adopted　at　the　column-footing　joints　to　reduce　the　required　anchorage　length.　The　PDP　with　a　scale　ratio　of　1:3　was　constructed　and　then　tested　under　the　quasi-static　load　to　investigate　its　seismic　performance.　Finally,　a　simplified　analytical　model　of　the　socket　connections　was　proposed　based　on　the　concept　of　the　elastic　foundation　beam.　The　test　results　demonstrate　that　the　damage　of　the　specimen　PDP　was　mainly　concentrated　at　the　bottom　of　the　columns,　and　the　damage　at　the　damage　ends　of　the　PDP　specimen　was　severer　than　that　of　the　cast-in-place　(CIP)　specimen.　The　load-bearing　capacity　of　the　PDP　is　slightly　higher　than　that　of　the　corresponding　CIP　specimen,　while　the　energy　dissipation　and　displacement　ductility　of　PDP　are　slightly　smaller　than　those　of　the　CIP　specimen.　The　proposed　model　could　accurately　and　efficiently　capture　the　hysteretic　behavior　of　the　proposed　PDP　with　socket　connections.　©　2023　Elsevier　Ltd