Influence of moisture content on the structural properties of wood under high temperature

- Exposure moisture content dependence of Young's modulus and bending strength under heating of Cryptomeria Japonica and Zelkova serrata

Chihiro Kaku, Yuji Hasemi, Daisuke Kamikawa, Tatsuro Suzuki, Noboru Yasui

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The structural properties of Cryptomeria Japonica, a softwood commonly used in timber engineering, and Zelkova serrata, a hardwood normally used in traditional large buildings, heated up to 95°C were measured at the elevated moisture content and temperatures as an engineering basis for the structural fire safety design of large-scale timber buildings. The results show that the Young's modulus of two species at the elevated moisture content and temperatures was largely affected by the moisture content over 10% and the heating temperatures 80°C or higher. The bending strength at normal temperature or higher was highly dependent on the moisture content, however two species showed different declining trends with the rise of moisture content and temperatures. The correlation between Young's modulus and bending strength of Cryptomeria Japonica keep to the same with the rise of the moisture content and temperatures. On the other hand, the correlation of Zelkova serrate became weaker with the rise of temperatures.

    Original languageEnglish
    Title of host publicationWCTE 2016 - World Conference on Timber Engineering
    PublisherVienna University of Technology
    ISBN (Electronic)9783903039001
    Publication statusPublished - 2016
    Event2016 World Conference on Timber Engineering, WCTE 2016 - Vienna, Austria
    Duration: 2016 Aug 222016 Aug 25

    Other

    Other2016 World Conference on Timber Engineering, WCTE 2016
    CountryAustria
    CityVienna
    Period16/8/2216/8/25

    Fingerprint

    Zelkova serrata
    bending strength
    Cryptomeria japonica
    wood properties
    Young modulus
    modulus of elasticity
    Bending strength
    Structural properties
    moisture content
    Wood
    Moisture
    Elastic moduli
    heating
    water content
    heat
    Heating
    temperature
    Temperature
    Timber
    timber

    Keywords

    • Bending strength
    • Hardwoods
    • Moisture content dependence
    • Softwoods
    • Temperature dependence
    • Young's modulus

    ASJC Scopus subject areas

    • Forestry
    • Civil and Structural Engineering
    • Building and Construction
    • Architecture

    Cite this

    Influence of moisture content on the structural properties of wood under high temperature : - Exposure moisture content dependence of Young's modulus and bending strength under heating of Cryptomeria Japonica and Zelkova serrata. / Kaku, Chihiro; Hasemi, Yuji; Kamikawa, Daisuke; Suzuki, Tatsuro; Yasui, Noboru.

    WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology, 2016.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kaku, C, Hasemi, Y, Kamikawa, D, Suzuki, T & Yasui, N 2016, Influence of moisture content on the structural properties of wood under high temperature: - Exposure moisture content dependence of Young's modulus and bending strength under heating of Cryptomeria Japonica and Zelkova serrata. in WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology, 2016 World Conference on Timber Engineering, WCTE 2016, Vienna, Austria, 16/8/22.
    Kaku, Chihiro ; Hasemi, Yuji ; Kamikawa, Daisuke ; Suzuki, Tatsuro ; Yasui, Noboru. / Influence of moisture content on the structural properties of wood under high temperature : - Exposure moisture content dependence of Young's modulus and bending strength under heating of Cryptomeria Japonica and Zelkova serrata. WCTE 2016 - World Conference on Timber Engineering. Vienna University of Technology, 2016.
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    abstract = "The structural properties of Cryptomeria Japonica, a softwood commonly used in timber engineering, and Zelkova serrata, a hardwood normally used in traditional large buildings, heated up to 95°C were measured at the elevated moisture content and temperatures as an engineering basis for the structural fire safety design of large-scale timber buildings. The results show that the Young's modulus of two species at the elevated moisture content and temperatures was largely affected by the moisture content over 10{\%} and the heating temperatures 80°C or higher. The bending strength at normal temperature or higher was highly dependent on the moisture content, however two species showed different declining trends with the rise of moisture content and temperatures. The correlation between Young's modulus and bending strength of Cryptomeria Japonica keep to the same with the rise of the moisture content and temperatures. On the other hand, the correlation of Zelkova serrate became weaker with the rise of temperatures.",
    keywords = "Bending strength, Hardwoods, Moisture content dependence, Softwoods, Temperature dependence, Young's modulus",
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    AU - Kaku, Chihiro

    AU - Hasemi, Yuji

    AU - Kamikawa, Daisuke

    AU - Suzuki, Tatsuro

    AU - Yasui, Noboru

    PY - 2016

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    N2 - The structural properties of Cryptomeria Japonica, a softwood commonly used in timber engineering, and Zelkova serrata, a hardwood normally used in traditional large buildings, heated up to 95°C were measured at the elevated moisture content and temperatures as an engineering basis for the structural fire safety design of large-scale timber buildings. The results show that the Young's modulus of two species at the elevated moisture content and temperatures was largely affected by the moisture content over 10% and the heating temperatures 80°C or higher. The bending strength at normal temperature or higher was highly dependent on the moisture content, however two species showed different declining trends with the rise of moisture content and temperatures. The correlation between Young's modulus and bending strength of Cryptomeria Japonica keep to the same with the rise of the moisture content and temperatures. On the other hand, the correlation of Zelkova serrate became weaker with the rise of temperatures.

    AB - The structural properties of Cryptomeria Japonica, a softwood commonly used in timber engineering, and Zelkova serrata, a hardwood normally used in traditional large buildings, heated up to 95°C were measured at the elevated moisture content and temperatures as an engineering basis for the structural fire safety design of large-scale timber buildings. The results show that the Young's modulus of two species at the elevated moisture content and temperatures was largely affected by the moisture content over 10% and the heating temperatures 80°C or higher. The bending strength at normal temperature or higher was highly dependent on the moisture content, however two species showed different declining trends with the rise of moisture content and temperatures. The correlation between Young's modulus and bending strength of Cryptomeria Japonica keep to the same with the rise of the moisture content and temperatures. On the other hand, the correlation of Zelkova serrate became weaker with the rise of temperatures.

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    KW - Moisture content dependence

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    KW - Young's modulus

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