Title:
PRECAST CONCRETE BEAM AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP3691033
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide recessed groove-shaped sectional precast concrete beam simply formed and its manufacturing method.
SOLUTION: In the precast concrete beam 1, trussed reinforcements 3 are arranged along the longitudinal direction of the internal surface and base of a recessed groove-shaped sectional precast concrete beam body 2, the concrete beam 1 is constituted so that parts of the trussed reinforcemens 3 are projected from the internal surface and the base, and through-grooves along the longitudinal direction are opened to the base or side face of the precast concrete beam body.
Inventors:
Akihiko Nagahara
Application Number:
JP2002291071A
Publication Date:
August 31, 2005
Filing Date:
October 03, 2002
Export Citation:
Assignee:
Japan Kaiser Co., Ltd.
International Classes:
E04B1/16; (IPC1-7): E04B1/16
Domestic Patent References:
| JP9268702A | ||||
| JP4044550A | ||||
| JP58011253A |
Attorney, Agent or Firm:
Isao Sasaki