| 摘要 |
PROBLEM TO BE SOLVED: To provide the junction structure of a CFT steel column(steel column) and a steel base column capable of transmitting the axial force of the steel column even when the width of the steel column is increased with respect to the diameter of the steel base column.SOLUTION: A junction structure 10 of a steel column and a steel base column includes: a steel base column 14 in which an inserted embedment section 36 is supported by resistance N calculated by a formula (1); and a CFT steel column 12 in which the embedment section 36 is formed with studs 16, and an axial power to be transmitted to the steel base column 14 is set so as to be smaller than the resistance N. In the formula (1) indicating that N=min(N, N), N=αN+N+&bgr;N, N=&sgr;×A, N: resistance (kN) of the steel base column, N: resistance (kN) of the steel base column, N: resistance (kN) of the steel base column, N: adhesion resistance (kN) caused between the steel column and the steel base column, N: bearing resistance (kN) caused between the steel column and the steel base column, N: stud resistance (kN), α, &bgr;: coefficients, &sgr;: allowable compressive stress (kN/m) of concrete, and A: a cross sectional area (m) of the steel base column. |
