To provide an inside form device for a construction method including the steps of sequentially lifting the inside form device suspended by a crane stepwise from the bottom of a cylindrical concrete structure and placing concrete, and a fall prevention device.
The inside form device is lifted by the crane; a fall prevention bar is made to protrude in an upper form fall prevention device; and upper and lower form fixing members are remove; and the form is removed. A lower form fall prevention device 5 puts the fall prevention bar 50 into a protrusible state; the inside form device is lifted up to the next upper construction step position, and supported by the lower form fixing member; and a form panel of the inside form device is located and fixed in the molding position of the cylindrical concrete structure by the lower form fixing member.
TSUNEISHI YOSHIHIRO
TAIRA HIDEO
NAGAKURA KOGYO KK
| JP2005171755A | 2005-06-30 | |||
| JP2001098559A | 2001-04-10 | |||
| JP2006241904A | 2006-09-14 | |||
| JP3070784U | 2000-08-15 |
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