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    OPTICAL FIBER–EMBEDDED PC STEEL STRAND, STRAIN MEASUREMENT DEVICE, AND PRODUCTION METHOD FOR OPTICAL FIBER–EMBEDDED PC STEEL STRAND

    New search for: UEDA NOBORU
    New search for: NAKAI YOUJI
    New search for: OSHIMA KATSUHITO
    New search for: MATSUBARA YOSHIYUKI
    New search for: NISHINO MOTONOBU
    New search for: OIKAWA MASASHI
    New search for: NAKAUE SHINJI
    New search for: SOGABE NAOKI
    New search for: IMAI MICHIO
    New search for: YAMAMOTO TORU
    New search for: YAMANOBE SHINICHI
    New search for: OKUBO KAZUMASA

    According to the present invention, an optical fiber–embedded PC steel strand includes a PC steel strand and an optical fiber. The PC steel strand comprises a plurality of twisted PC steel wires. The optical fiber is fixed with resin in a twist groove that is the groove between two adjacent PC steel wires at the outer surface of the PC steel strand. As measured for 10 cross-sections orthogonal to the longitudinal direction of the PC steel strand, the coefficient of variation for the distance between the center of the optical fiber and the common tangent of the two adjacent PC steel wires that form the twist groove is no more than 0.5.

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    OPTICAL FIBER–EMBEDDED PC STEEL STRAND, STRAIN MEASUREMENT DEVICE, AND PRODUCTION METHOD FOR OPTICAL FIBER–EMBEDDED PC STEEL STRAND

    New search for: UEDA NOBORU
    New search for: NAKAI YOUJI
    New search for: OSHIMA KATSUHITO
    New search for: MATSUBARA YOSHIYUKI
    New search for: NISHINO MOTONOBU
    New search for: OIKAWA MASASHI
    New search for: NAKAUE SHINJI
    New search for: SOGABE NAOKI
    New search for: IMAI MICHIO
    New search for: YAMAMOTO TORU
    New search for: YAMANOBE SHINICHI
    New search for: OKUBO KAZUMASA

    According to the present invention, an optical fiber–embedded PC steel strand includes a PC steel strand and an optical fiber. The PC steel strand comprises a plurality of twisted PC steel wires. The optical fiber is fixed with resin in a twist groove that is the groove between two adjacent PC steel wires at the outer surface of the PC steel strand. As measured for 10 cross-sections orthogonal to the longitudinal direction of the PC steel strand, the coefficient of variation for the distance between the center of the optical fiber and the common tangent of the two adjacent PC steel wires that form the twist groove is no more than 0.5.

    Access

    Download

    OPTICAL FIBER–EMBEDDED PC STEEL STRAND, STRAIN MEASUREMENT DEVICE, AND PRODUCTION METHOD FOR OPTICAL FIBER–EMBEDDED PC STEEL STRAND

    New search for: UEDA NOBORU
    New search for: NAKAI YOUJI
    New search for: OSHIMA KATSUHITO
    New search for: MATSUBARA YOSHIYUKI
    New search for: NISHINO MOTONOBU
    New search for: OIKAWA MASASHI
    New search for: NAKAUE SHINJI
    New search for: SOGABE NAOKI
    New search for: IMAI MICHIO
    New search for: YAMAMOTO TORU
    New search for: YAMANOBE SHINICHI
    New search for: OKUBO KAZUMASA

    According to the present invention, an optical fiber–embedded PC steel strand includes a PC steel strand and an optical fiber. The PC steel strand comprises a plurality of twisted PC steel wires. The optical fiber is fixed with resin in a twist groove that is the groove between two adjacent PC steel wires at the outer surface of the PC steel strand. As measured for 10 cross-sections orthogonal to the longitudinal direction of the PC steel strand, the coefficient of variation for the distance between the center of the optical fiber and the common tangent of the two adjacent PC steel wires that form the twist groove is no more than 0.5.

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    Title:

    OPTICAL FIBER–EMBEDDED PC STEEL STRAND, STRAIN MEASUREMENT DEVICE, AND PRODUCTION METHOD FOR OPTICAL FIBER–EMBEDDED PC STEEL STRAND

    Contributors:

    UEDA NOBORU (author) / NAKAI YOUJI (author) / OSHIMA KATSUHITO (author) / MATSUBARA YOSHIYUKI (author) / NISHINO MOTONOBU (author) / OIKAWA MASASHI (author) / NAKAUE SHINJI (author) / SOGABE NAOKI (author) / IMAI MICHIO (author) / YAMAMOTO TORU (author)

    Publication date:

    2024-01-25

    Type of media:

    Patent

    Type of material:

    Electronic Resource

    Language:

    English

    Classification:

    IPC:  G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / E04C STRUCTURAL ELEMENTS , Bauelemente / E04G SCAFFOLDING , Baugerüste / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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