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.
|ジャーナル||Journal of Structural and Construction Engineering|
|出版ステータス||Published - 2020 4月|
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