Assembly Type Steel Tube Having a Reinforcing Member Therein and Construction Method of Concrete Filled Tube Structures Using the Same

摘要

The present invention is a prefabricated steel pipe used for a concrete filled type (CFT) structure in which unit steel pipe structures are assembled and extended, and concrete is filled therein, wherein the unit steel pipe structure is a reinforcement member on an inner surface. Is coupled, the reinforcing member is formed to extend in the extending direction or the opposite direction of the prefabricated steel pipe to protrude from the unit steel pipe structure, the unit steel pipe structure, the first or second unit steel pipe structure (100, 200), the assembled steel pipe 500 includes first and second unit steel pipe structures 100 and 200, and the reinforcing member 120 of the first unit steel pipe structure 100 includes: The second unit steel pipe structure 200 is inserted inside, and the reinforcing member 220 of the second unit steel pipe structure 200 is formed to be inserted into the first unit steel pipe structure 100, and the first and first 2 unit steel pipe Reinforcing members (120, 220) of the structures (100, 200) are fixed to concrete, and are formed to strengthen the bonding force of the joints of the first and second unit steel pipe structures (100, 200), providing a prefabricated steel pipe do.