CONCRETE FILLING STEEL PIPE COLUMN

摘要

PROBLEM TO BE SOLVED: To provide a concrete filling steel pipe column excellent in the manufacturing efficiency of the steel pipe column without using any specific steel pipe and without weakening concrete adhesion force with the steel pipe column. SOLUTION: A pair of diaphragms 12, 13 are formed on the column and beam joint art of a circular steel pipe 1 to spirally form a padding welding bead 7 on the corresponding part of the column and beam joint part of the circular steel pipe 1.