Charring behavior of structural timber elements in full-scale fire tests of three story timber school buildings

Jun Ichi Suzuki, Chihiro Kaku, Tomohiro Naruse, Koji Kagiya, Yasui Noboru, Naoyuki Itagaki, Jun Ichi Izumi, Mariko Seki, Teruhiko Kaku, Yuji Hasemi

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

    Abstract

    The charring behavior of timber structural elements, such as the charring rate of timber elements and delamination of glue-laminated timber, affects the structural stability of timber buildings. The charring rate of timber elements varies depending on the severity of fire exposure. However, charring rates have been ordinarily investigated in fire tests under the standard fire exposure defined by ISO 834. It is important to accumulate and analyze data on the charring behavior of timber elements under actual fire exposure. The aim of this study was to clarify the charring behavior of glue-laminated timber structural elements exposed to actual fire in full-scale fire tests of three-story timber school buildings. Charred and uncharred areas of the timber structural elements were carefully observed and investigated after the fire tests. The charring rates of timber elements in full-scale fire tests ranged from 0.6 mm/min to 1.3mm/min. The charring rates were greater than the nominal charring rates reported in past studies because of preheating and severe fire exposure.

    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

    Keywords

    • Charring behavior
    • Full-scale fire test
    • Glue-laminated timber
    • Timber building

    ASJC Scopus subject areas

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

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