The　problems　of　conventional　lap-spliced　connection　are　long　splicing　length,　narrow　internal　space　and　difficulty　in　maintaining　verticality.　Therefore,　an　innovative　connection　was　proposed　by　adopting　tubes　instead　of　vertical　rebars.　The　innovative　connection　can　not　only　solve　the　listed　limitations,　but　also　optimize　the　mechanical　behavior　and　the　construction　efficiency.　This　paper　numerically　investigated　the　axial　tensile　performance　of　the　innovative　connection　based　on　the　previous　tests.　The　force-transferring　mechanism　was　revealed　and　the　parametric　study　was　conducted　by　changing　concrete　strength,　plate　thickness,　eccentricity,　number　of　studs,　and　location　of　shear　connectors.　The　simulation　results　indicated　that　the　steel　plate　in　the　tension　zone　yielded　along　the　X-shaped　tension　band.　The　axial　tension　was　transferred　through　the　concrete　compression　struts　generated　under　the　combined　action　of　concrete,　tie　bars　and　studs.　The　influence　of　concrete　strength　on　the　axial　tensile　performance　was　relatively　small.　The　influence　of　number　of　studs,　location　of　shear　connectors,　plate　thickness,　and　eccentricity　on　the　axial　strength　and　stiffness　was　significant.　Besides,　current　specifications　were　evaluated　and　detailed　design　recommendations　were　given.　©　2025　Institution　of　Structural　Engineers