Title:
CONSTRUCTION METHOD OF HOLLOW CONCRETE STRUCTURE
Document Type and Number:
Japanese Patent JP2959366
Kind Code:
B2
Abstract:
PURPOSE: To save working labor and to shorten the construction period.
CONSTITUTION: A cylindrical formwork 2, a formwork-lifting device 3 having an equilaterl triangular beam crosswise arranged on the top of the formwork 2, an edging sheet 4 interposed between the outer circumference of the formwork 2 and concrete C, and fixing jigs 5 for temporarily fixing the lower end of the formwork 2 to the hollow part 1 of the concrete C are prepared. As for the construction procedure, the formwork 2 is fixed through fixing jigs 5' at a prescribed position, and also an edging sheet 4 is arranged on the outside of the formwork 2, and concrete C is placed on the outside of the formwork 2, then after hardening of the concrete C a lifting device 3 is installed on the top of the existing concrete C on the outside of the formwork 2, and the formwork 2 is slidingly moved up to the subsequent placing stage by driving a jack 18, and then after the formwork 2 has been fixed by the fixing jigs 5, the lifting device 3 is removed.
Inventors:
NOZAKI TOKIHISA
MIZUMOTO MINORU
SONE TAKAYUKI
MAIDA YASUYUKI
MIZUMOTO MINORU
SONE TAKAYUKI
MAIDA YASUYUKI
Application Number:
JP31983893A
Publication Date:
October 06, 1999
Filing Date:
December 20, 1993
Export Citation:
Assignee:
OOBAYASHIGUMI KK
International Classes:
E04G11/28; E04G11/22; (IPC1-7): E04G11/22
Domestic Patent References:
| JP5043724A | ||||
| JP60174743U |
Attorney, Agent or Firm:
Kensuke Isshiki (2 outside)