| 摘要 |
PROBLEM TO BE SOLVED: To maintain high fire resistance efficiency in a concrete-filled steel pipe pole including a fire resistive covering.SOLUTION: A concrete-filled steel pipe pole 10 includes: a steel pipe 11 vertically extending; concrete 12 filled inside the steel pipe 11; and a fire resistive covering 13 formed on an outer peripheral surface 11a of the steel pipe 11. In the steel pipe 11, an open hole 15 is formed which discharges steam S out of the steel pipe 11 when water contained in the concrete 12 is vaporized and the steam S is generated in the case of a fire, and a plate material 26 is provided which is positioned in a plane along the outer peripheral surface 11a of the steel pipe 11 in a position facing the open hole 15 on the outer peripheral side of the steel pipe 11. |
