Concrete filled steel tube of built -in multiple joint construction

The utility model discloses a concrete filled steel tube of built -in multiple joint construction, including steel pipe and the concrete of pouring in the steel pipe, follow perpendicular to steel pipe axial at the steel pipe inner wall and the juncture of the concrete of pouring and set up shear force nail and J -shaped connecting piece, and the one end and steel pipe inner wall fixed connection of shear force nail, the non - arcuation end and the steel pipe inner wall fixed connection of J -shaped connecting piece, the utility model discloses utilize the off -plate stability of J -shaped joint construction reinforcing steel pipe to the corresponding structure ability of shearing that by a wide margin strengthens, each component parts with whole concrete filled steel tube closely is linked to be whole simultaneously. The multichannel shear force of deuterogamying nail is connected concrete filled steel tube organically as an organic wholely, has further strengthened whole concrete filled steel tube's wholene