Title:
【発明の名称】原子炉格納容器シールドウォール天井床の施工方法
Document Type and Number:
Japanese Patent JP2559811
Kind Code:
B2
Abstract:
PURPOSE:To contrive the reduction of a workload by supporting one end of a structural material on the upper end of a shielded side wall, temporarily connecting the other end thereof to a reactor containment vessel and releasing the temporary connection after placing concrete on the structural material to solidify. CONSTITUTION:At first, the work of a reactor containment vessel 12 and a shielded side wall 15 is performed after the execution of a mat 10. One end of a steel frame beam 18 is supported to fix on a steel frame column 17 buried on the upper end of the side wall 15 and a mold form 19 is supported on the beam 18 by a separator 20. A plate 25 is attached to the end part of the side of the vessel 12 of the beam 18 and a female shear lug 23 is connected to the plate 25. Next a male shear lug 22 and the female lug 23 attached to the vessel 22 are attached each other temporarily. Next concrete is placed on the form 19 and around the circumference of the beam 18. After concrete of a shielded wall ceiling floor 16 is solidified, the temporary connection of the lugs 22, 23 is released and the function of a shear lug 21 essentially needed is imparted.
Inventors:
NAGASE KATSUICHI
TAJIRI AKINORI
OKANO TAKASHI
TAJIRI AKINORI
OKANO TAKASHI
Application Number:
JP14851588A
Publication Date:
December 04, 1996
Filing Date:
June 16, 1988
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
HITACHI NYUUKURIA ENJINIARINGU KK
HITACHI NYUUKURIA ENJINIARINGU KK
International Classes:
E04B5/00; E04H5/02; G21C13/00; (IPC1-7): G21C13/00
Domestic Patent References:
| JP1254897A | ||||
| JP1244394A | ||||
| JP6291895A |
Attorney, Agent or Firm:
Kasuga