公开(公告)号：US10815664B2

公开(公告)日：2020-10-27

申请号：US15542332

申请日：2016-01-05

申请人： Sumitomo Electric Industries, Ltd.

发明人： Masashi Oikawa ,  Masato Yamada ,  Yoshiyuki Matsubara ,  Shinji Nakaue ,  Toru Yamamoto ,  Shinichi Yamanobe ,  Michio Imai ,  Naoki Sogabe ,  Kazumasa Okubo ,  Kazuyoshi Chikiri ,  Toshiyuki Kobayashi

IPC分类号： E04C5/08 ,  D07B1/14 ,  E04G21/12 ,  D07B1/16 ,  D07B1/06 ,  G01L1/24 ,  G01L5/04 ,  E04B1/16

摘要： A coated PC steel stranded cable includes: a stranded cable in which a plurality of elemental wires each composed of steel are twisted together; an anti-corrosive coating having an outer circumferential portion that coats an outer circumference of the stranded cable; an outer coating that coats an outer circumference of the anti-corrosive coating; and an optical fiber provided at a position inwardly of an outer circumferential surface of the outer coating and corresponding to a strand groove in the stranded cable so as to follow expansion and contraction of the stranded cable.