The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2023
Filed:
Jan. 31, 2020
Tokyo Rope Mgf. Co., Ltd., Tokyo, JP;
Oriental Shiraishi Corporation, Tokyo, JP;
Yoshihiro Tanaka, Tokyo, JP;
Eiji Koda, Tokyo, JP;
Toru Tanaka, Tokyo, JP;
Meguru Tsunomoto, Tokyo, JP;
Hiroshi Watase, Tokyo, JP;
Tomohiro Ishii, Tokyo, JP;
TOKYO ROPE MFG. CO., LTD., Tokyo, JP;
ORIENTAL SHIRAISHI CORPORATION, Tokyo, JP;
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.