CONSTRUCTION DEVICE OF POST-INSERTION BUILDING CENTRAL COLUMN AND CONSTRUCTION METHOD IN INVERTED CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a construction device of a post-insertion building central column and a construction method in an inverted construction method capable of directly making the post-insertion to an erecting holder without making any adjustment thereto to erect with high accuracy after a cast-in-place concrete pile has been placed. SOLUTION: An installation base 20 having anchor bolts 18 on the circumferential edge of the building central column insertable opening 12 formed in a temporary earthen floor 16 is formed with high degree of accuracy of a horizontal/position, and the erecting holder 22 surrounding around the upward opening 12 is placed by fixing with the bolts 18. An insertion guiding rail 26 for prescribing an insertion position of the building central column 24 to the central position is put on the holder 22. The building central column 24 is suspended by a suspending device 30 through a cable stopping tool 44 and a suspension supporting member 32, and it is vertically suspended by gravity. After a concrete 56 has been placed, the building central pillar 24 is fitted in an unsolidified concrete while positioning the building central pillar by the guiding rail 26. Gauges 46 for positioning the erecting position to the central position by coming into contact with the guiding rail 26 are integrally provided along the longitudinal direction on the circumference of the suspension supporting member 32 and the building central column 24.