CONCRETE FILLED DOUBLE STEEL TUBE AND CONCRETE FILLED TUBULAR COLUMN

摘要

The present invention provides for two-pipe and concrete filled steel tube column for concrete filling. double steel pipe for the concrete is filled in the hollow portion is formed inside the steel pipe, is arranged at a distance outside the inner steel tube and the outer steel tubes which are provided so that the filling space is formed which concrete is filled, the inner steel tube and the outer steel pipe is integrated, is coupled in the longitudinal direction on the inner surface of the outer surface of the inner steel tube and the outer steel pipe so as to behavior, comprising: a front end coupling member is a plurality of holes formed in order to increase the bonding strength between the inner pipe and the outer steel tube and the concrete, the outer steel pipe is made by bonding a plurality of the plate, the inner steel tube is formed of multiple pieces inside the outer steel pipe, each being bonded via the front end connected to the inner member in at least some of the plurality of plates, the interior of the steel pipe and the other member may include one end bonded to the extension formed to extend than the end of the external downcomer portion. ;