Development of an equation calculating young s modulus remaining ratio with temperature and moisture content within wooden members exposed to fire heating

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

Research output: Contribution to journalArticle

Abstract

Young's Modulus of wood is formulated as functions of temperature and moisture content for the assessment of mechanical performance of wooden members exposed to fire heating. Parameters are determined for 5 tree species common for construction by regression analysis with results of bending tests for temperature between 20°C and 250°C, moisture content between 0% and 180.5%. Differences of temperature dependence of Young's Modulus between tree species was small at bone-dry state, but large at high moisture content. Young's modulus remaining ratio at high moisture content decrease to 0.57 in Cryptomeria japonica, 0.35 in Zelkova serrata even under 100°C.

Original languageEnglish
Pages (from-to)651-661
Number of pages11
JournalJournal of Structural and Construction Engineering
Volume85
Issue number770
DOIs
Publication statusPublished - 2020 Apr

Keywords

  • Fire Heating
  • Inner Temperature
  • Moisture Content
  • Wooden Members
  • Youngs Modulus

ASJC Scopus subject areas

  • Architecture
  • Building and Construction

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