公开(公告)号：US20180274237A1

公开(公告)日：2018-09-27

申请号：US15542332

申请日：2016-01-05

申请人： Sumitomo (SEI) Steel Wire Corp.

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 ,  D07B1/06 ,  D07B1/14 ,  D07B1/16

CPC分类号： E04C5/08 ,  D07B1/0693 ,  D07B1/145 ,  D07B1/148 ,  D07B1/162 ,  D07B2201/2041 ,  D07B2201/2044 ,  D07B2201/2046 ,  D07B2201/2092 ,  D07B2201/2096 ,  D07B2205/206 ,  D07B2205/3025 ,  D07B2301/259 ,  D07B2401/2025 ,  D07B2501/2023 ,  E04B1/16 ,  E04B2103/02 ,  E04B2103/06 ,  E04G21/12 ,  G01L1/242 ,  G01L5/04 ,  D07B2801/16

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.