CFT MAMUFACTURING METHOD OF PREFABRICATED STEEL PIPE WITH TUBE FOR THE CFT COLUMNS

摘要

The present invention relates to a structure of a tube column for constructing a CFT column filled with concrete therein and a method of manufacturing the tube column, wherein the tube column comprises a square steel pipe forming an envelope of the CFT column, Wherein at least two corners facing each other are provided with tubes having the same length as the entire column and at least a concrete spray hole is formed at least in the entire length of the tube, Fabricating an assembly; Installing a vertical stiffener to form a tube in an inner edge of each unit assembly; And assembling each of the unit assemblies provided with the vertical stiffeners to form a square steel pipe.