Assemblable structural column joint connection using fiber-reinforced concrete filled round double steel tubes and mounting method thereof

An assemblable structural column joint connection, comprising:

• an outer round steel tube,
• an inner round steel tube, and
• a round separation plate;
• wherein:
• the inner round steel tube is provided in the outer round steel tube, and is concentric with the outer round steel tube;
• a plurality of dove-tail teeth are provided at both the outer round steel tube and the inner round steel tube, and the plurality of dove-tail teeth spaced are uniformly distributed along circumferences of the inner round steel tube and the outer round steel tube;
• the round separation plate comprises a round plate provided with a central through-hole;
• a plurality of vertical separation walls corresponding to the plurality of dove-tail teeth are provided on upper and lower surfaces of the round plate;
• the plurality of vertical separation walls comprise a first vertical separation wall fitted with the inner round steel tube and a second vertical separation wall fitted with the outer round steel tube, so that the outer round steel tube and the inner round steel tube are fixedly connected to the round separation plate;
• and a plurality of dove-tail sliding grooves for matching the plurality of dove-tail teeth are provided on the plurality of vertical separation walls.