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1.发明授权公开(公告)号：US11753823B2
公开(公告)日：2023-09-12
申请号：US17601922
申请日：2020-01-31
Applicant: TOKYO ROPE MGF. CO., LTD. , ORIENTAL SHIRAISHI CORPORATION
Inventor： Yoshihiro Tanaka , Eiji Koda , Toru Tanaka , Meguru Tsunomoto , Hiroshi Watase , Tomohiro Ishii
CPC classification number: E04C2/06 , C04B14/386 , C04B16/0633 , E04B5/04 , E04B5/43 , E04C5/073 , E04C5/20
Abstract: A concrete structure includes a continuous fiber-reinforced polymer material arranged as a main reinforcing material or a tendon. A short fiber reinforcing material consisting of an organic fiber is mixed in 0.5% or more with respect to an entire volume. The continuous fiber-reinforced polymer material is shaped like a rod or a stranded wire. A ratio Lf/Gm between a fiber length Lf of the organic fiber of the short fiber reinforcing material and a maximum aggregate diameter Gm of a concrete composition is 1.2 to 3.7, and an aspect ratio Lf/De, in which De is an equivalent diameter that is a cross-sectional area of the organic fiber converted into a circle diameter, is 30 to 69.
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公开(公告)号：US11268280B2
公开(公告)日：2022-03-08
申请号：US16635223
申请日：2018-07-11
Inventor： Hiroshi Masuya , Yoshihiro Tanaka , Toru Tanaka , Eiji Koda , Hiroshi Watase , Meguru Tsunomoto
Abstract: In an anchorage (1) of continuous fiber-reinforced polymer (CFRP) strands that anchors continuous fiber-reinforced polymer strands (2) to concrete structures, there is provided an untwisted diameter-expanded portion (3) expanded to a diameter D2 by being radially expanded with respect to a diameter D1 of a general portion (4) of the CFRP strands (2) by untwisting any section of the CFRP strands (2) formed by stranding a plurality of element wires (20, 21) that are bundles of multiple continuous fibers, and filling and curing a time curable material (5) in a clearance among the element wires the untwisted section that is untwisted.
