Circular CFRP concrete filled steel tubular column-steel beam joint

The utility model relates to a circular CFRP concrete filled steel tubular column-steel beam node which comprises a first circular steel tube, a second circular steel tube and a third circular steel tube which are sequentially connected, the first circular steel tube, the second circular steel tube and the third circular steel tube are in threaded connection through a lining cylinder arranged inside, and a first CFRP layer is arranged on the periphery of the connecting position of the first circular steel tube and the second circular steel tube. A second CFRP layer is arranged on the periphery of the rest part of the first round steel pipe, a third CFRP layer is arranged on the periphery of the joint of the second round steel pipe and the third round steel pipe, a fourth CFRP layer is arranged on the periphery of the rest part of the third round steel pipe, the outer portion of the second round steel pipe is connected with a joint plate, and the joint plate is connected with a steel beam bolt. The node is sim