Influence of fire exposure on the mechanical properties of wood: - Exposure temperature dependence of Young's modulus and bending strength of Cryptomeria japonica, Larix leptolepis, Pseudotsuga menziesii and Zelkova serrata under and after heating - Exposure t

Chihiro Kaku, Yuji Hasemi, Noboru Yasui, Mizuho Yasukawa, Daisuke Kamikawa, Naohisa Kameyama, Tetsuro Ono, Mikio Koshihara, Hirofumi Nagao

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    Young's modulus and bending strength of 3 species of wood commonly used for engineered wood and Zelkova, hardwood normally used for traditional large building, heated up to 250°C are measured at the elevated temperature and after cooling to the room temperature as an engineering basis for the structural fire safety design and the reusability diagnosis of large-scale timber buildings. The results show the both properties, either at elevated temperature or after cooling, are highly dependent on exposed temperature for 150-200°C or higher, and correlation between the Young's modulus and the bending strength tends to become weaker with rise of exposed temperature. The bendmg strength at elevated temperature is found to converge while it is notably scattered at normal temperature.

    Original languageEnglish
    Pages (from-to)1065-1072
    Number of pages8
    JournalJournal of Structural and Construction Engineering
    Volume79
    Issue number701
    Publication statusPublished - 2014 Jul 1

    Fingerprint

    Bending strength
    Wood
    Fires
    Elastic moduli
    Heating
    Mechanical properties
    Temperature
    Cooling
    Hardwoods
    Reusability
    Timber

    Keywords

    • After fire heating
    • Bending strength
    • Hardwoods
    • Softwoods
    • Temperature dependence
    • Young's modulus

    ASJC Scopus subject areas

    • Building and Construction
    • Architecture

    Cite this

    Influence of fire exposure on the mechanical properties of wood : - Exposure temperature dependence of Young's modulus and bending strength of Cryptomeria japonica, Larix leptolepis, Pseudotsuga menziesii and Zelkova serrata under and after heating - Exposure t. / Kaku, Chihiro; Hasemi, Yuji; Yasui, Noboru; Yasukawa, Mizuho; Kamikawa, Daisuke; Kameyama, Naohisa; Ono, Tetsuro; Koshihara, Mikio; Nagao, Hirofumi.

    In: Journal of Structural and Construction Engineering, Vol. 79, No. 701, 01.07.2014, p. 1065-1072.

    Research output: Contribution to journalArticle

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    abstract = "Young's modulus and bending strength of 3 species of wood commonly used for engineered wood and Zelkova, hardwood normally used for traditional large building, heated up to 250°C are measured at the elevated temperature and after cooling to the room temperature as an engineering basis for the structural fire safety design and the reusability diagnosis of large-scale timber buildings. The results show the both properties, either at elevated temperature or after cooling, are highly dependent on exposed temperature for 150-200°C or higher, and correlation between the Young's modulus and the bending strength tends to become weaker with rise of exposed temperature. The bendmg strength at elevated temperature is found to converge while it is notably scattered at normal temperature.",
    keywords = "After fire heating, Bending strength, Hardwoods, Softwoods, Temperature dependence, Young's modulus",
    author = "Chihiro Kaku and Yuji Hasemi and Noboru Yasui and Mizuho Yasukawa and Daisuke Kamikawa and Naohisa Kameyama and Tetsuro Ono and Mikio Koshihara and Hirofumi Nagao",
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    AU - Kaku, Chihiro

    AU - Hasemi, Yuji

    AU - Yasui, Noboru

    AU - Yasukawa, Mizuho

    AU - Kamikawa, Daisuke

    AU - Kameyama, Naohisa

    AU - Ono, Tetsuro

    AU - Koshihara, Mikio

    AU - Nagao, Hirofumi

    PY - 2014/7/1

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    AB - Young's modulus and bending strength of 3 species of wood commonly used for engineered wood and Zelkova, hardwood normally used for traditional large building, heated up to 250°C are measured at the elevated temperature and after cooling to the room temperature as an engineering basis for the structural fire safety design and the reusability diagnosis of large-scale timber buildings. The results show the both properties, either at elevated temperature or after cooling, are highly dependent on exposed temperature for 150-200°C or higher, and correlation between the Young's modulus and the bending strength tends to become weaker with rise of exposed temperature. The bendmg strength at elevated temperature is found to converge while it is notably scattered at normal temperature.

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    KW - Bending strength

    KW - Hardwoods

    KW - Softwoods

    KW - Temperature dependence

    KW - Young's modulus

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