A　new　type　of　beam-column　connection　for　large　diameter　concrete　filled　tubular　column　was　proposed　on　the　basis　of　traditional　inner　ring　plate　connections.　In　order　to　avoid　the　difficulty　of　pouring　concrete　and　using　more　steel　due　to　the　wider　inner　ring　plate,　welding　reinforcing　bars　on　the　inner　ring　plate　were　used,　which　could　reduce　the　amount　of　steel　and　be　convenient　for　setting　reinforcing　bar　cage　in　the　steel　pipe　column.　In　order　to　avoid　the　lamellar　tearing　of　the　surface　of　steel　pipe　column,　flange　at　the　beam　end　needs　to　be　widened.　The　width　and　angle　of　flange　were　reasonably　determined　by　analysis.　The　relationship　between　connection　detail　and　stress　distribution　was　fully　analyzed　by　nonlinear　finite　element　software.　The　rigid　zone　length　of　beam-column　connection　was　obtained　by　comparative　analysis.　The　relationship　between　rigid　zone　length　and　bending　stiffness　of　frame　beam　was　researched.　In　order　to　verify　the　rationality　of　the　new　type　connection,　experimental　studies　on　the　scale　model　of　concrete　filled　tubular　column　and　H-section　beam　connection　were　conducted.　The　results　of　finite　element　analysis　and　scaled　model　tests　indicate　that　the　steel　bar　can　improve　the　force-transfer　by　inner　ring　plate　and　the　stress　of　connection　is　reduced　effectively.　When　the　flange　width　is　expanded　1.5　times　and　the　widened　angle　is　1:6,　the　maximum　stress　on　connection　zone　is　significantly　lower　than　H-section　beam　and　the　earthquake-resistant　design　philosophy　of　＇strong-joint　and　weak-member＇　is　satisfied.　The　connection　stiffness　has　remarkable　effect　on　the　lateral　stiffness　of　frame　structure　which　has　concrete　filled　tubular　column　and　H-section　beam　connections.　The　bending　stiffness　of　the　frame　beam　can　be　increased　by　more　than　40　percent　when　the　rigid　zone　length　is　about　0.4　times　the　diameter　of　steel　pipe.　The　seismic　behavior　of　the　connection　is　good　and　the　seismic　design　concepts　of　＇strong-joint　and　weak-member＇　can　be　realized.　©　2016,　Science　Press.　All　right　reserved.