In　order　to　study　the　progressive　collapse　performance　of　the　wet-connected　prefabricated　concrete　beam-column　substructures,　the　finite　element　software　LS-DYNA　was　adopted　to　establish　detailed　models　for　three　specimens　in　previous　work.　The　solid　elements　and　CSCM　material　model　were　used　for　concrete,　and　the　beam　elements　and　the　piecewise　linear　plasticity　model　were　used　for　rebars.　The　bond-slip　of　rebars　and　concrete　was　considered　within　the　area　of　1.5　times　beam　height　of　the　beam-column　joint,　while　the　element　failure　function　provided　by　LS-DYNA　was　used　to　simulate　the　fracture　of　rebars　and　concrete　cracking.　The　size　reduction　of　rebars　was　considered　to　simulate　the　mechanical　sleeve　connection,　and　the　anchor　plates　in　beam-column　joint　were　modeled　by　the　equivalent　area　method　with　the　contact　defined　by　the　keyword　*CBIS　to　prevent　penetration.　The　errors　of　the　obtained　structural　strengths　between　numerical　and　experimental　results　are　less　than　15%,　and　the　structural　mechanism　and　failure　mode　of　each　specimen　are　consistent　with　those　of　the　test.　©　2024　Tsinghua　University.　All　rights　reserved.