Title:
ＦＲＰ緊張材の定着装置
Document Type and Number:
Japanese Patent JP6869083
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To anchor a plurality of FRP tendons applied with tensioning force in a small space without damaging an FRP tendon with a wedge.SOLUTION: An anchorage device for FRP tendon has: a plurality of grip members 2 which are pressed against outer peripheral surfaces of the plurality of FRP tendons 1 at end parts along axes; an outer pipe 3 having end parts of the plurality of FRP tendons, against which the grip members are pressed, inserted into a through hole 3a; and a wedge 4 which is pressed in between the grip members and an inner peripheral surface of the through hole. The plurality of FRP tendons 1 are held between pluralities of grip members at mutually separate positions, respectively, and the wedge 4 is pressed in between the inner peripheral surface of the through hole and an outer peripheral part of the grip members 2 bundled with the FRP tendons held therebetween. The grip members 2 have a length of projection in a direction in which the FRP tendons are extended from a range in which the wedge is pressed, and also have tip parts coupled by a steel plate 5. The part where a grip member 2 projects is gradually reduced in press-contact force to an FRP tendon 1 when the wedge 4 is pressed.SELECTED DRAWING: Figure 1
Inventors:
Hiroshi Asai
Takeyama Tadaomi
Hiroo Shinozaki
Naoki Nagamoto
Takeyama Tadaomi
Hiroo Shinozaki
Naoki Nagamoto
Application Number:
JP2017078142A
Publication Date:
May 12, 2021
Filing Date:
April 11, 2017
Export Citation:
Assignee:
Sumitomo Mitsui Construction Co., Ltd.
International Classes:
E04C5/12; E04G21/12
Domestic Patent References:
| JP2003509602A | ||||
| JP4108750U | ||||
| JP52110709U | ||||
| JP11131694A | ||||
| JP2006176957A |
Foreign References:
| WO2011019075A1 | ||||
| EP0232944A1 | ||||
| CN201460240U |
Attorney, Agent or Firm:
Kiyoshi Miyakawa