| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the management of work progress without making the erection of a steel substructural column undergo a critical path by providing an erection method for the steel substructural column, which allows the substructural steel column to be easily erected on normal concrete holding no workability in particular and enables the construction period of the erection of the column to be shortened because the strength of the concrete rapidly manifests itself. SOLUTION: The steel substractural column 30 is held approximately vertical by a crane 10 above the concrete Q placed inside a hole wall protecting pipe 60 in advance in such a state to undergo vertical high-frequency vibrations generated by a high-frequency vibrator 20. In this state, the crane 10 is controlled so as to allow the steel column 30 to descend, and the self-weight of the steel substructural column 30 permits the column 30 to be erected. On the concrete Q, there is erected the column 30 undergoing horizontal alignment by means of an accuracy adjusting device 70. Consequently, the column 30 can be easily erected with high accuracy on the normal air entrained concrete holding no workability in particular.
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