To efficiently construct an upper work of a water area structure.
When constructing the upper work composed of a concrete beam and a slab, after precedently constructing the beam in a grating shape, the slab is integrally constructed on these beams. Suspending timbering is suspended and supported in a beam bottom position from above the beam to be constructed, and a beam form 50 is assembled by being supported by the suspending timbering, and the suspending timbering and the beam form are removed upward via an opening part of a span after forming the beam. A frame-shaped sleeper unit 30 is adopted as the suspending timbering, and a rod 31 for suspension-support is made to self-stand on its unit. Floor joist units 40a and 40b are arranged around a lower work. The beam form is assembled by laying a sheathing board 52 composed of plywood on floor joists by densely extending the floor joists 51 composed of a square bar between the suspending timbering. A floor form is supported and assembled by a bracket by installing the bracket on an anchor by embedding the anchor in advance when precedently constructing the beam.
MACHIDA TARO
NIPPON KASETSU KK
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama