Steel structure in which steel pipe concrete composite columns and beams are joined, and its construction method

摘要

The present invention relates to a steel structure in which a steel pipe-concrete composite column and an improved beam are joined and a construction method thereof, and a steel pipe-concrete composite column (100-3) installed vertically on the floor surface, and the steel pipe-concrete composite column (100) -3) includes a double H-beam improved beam 200 that is joined to form a vertical at each predetermined height. The present invention has advantages in that constructability is improved, seismic performance is improved with a fully welded structure, economical efficiency is advantageous, and appearance is improved.