Full-bolt splicing node for inner sleeve slotted closed-section pillar

The invention belongs to the technical field of building steel structure node connection, and particularly relates to a closed-section member splicing node, which consists of an upper steel tube and a lower steel tube which are to be connected, a slotted inner sleeve, bolts and an inner lining plate. The node takes the slotted inner sleeve as a splicing member and the bolts as fasteners, and the inner lining plate can be used for increasing the frictional force of bolt friction-type connection. The problem that common connecting nodes are required to be welded on site is solved, the problem that the common connecting nodes are provided with end plates, ear plates and bolts protruding a connected member to influence the design and construction of adjacent members is solved, and the splicing node has good antiseismic energy dissipation performance. The node is easy and convenient to operate, high in construction speed, high in mounting accuracy and labor-saving, and has a wide application prospect.