文献类型：会议论文

英文题名：Mechanical properties of three layers cross-laminated timber (CLT) fabricated with Japanese Larch

作者：Gong, Yingchun[1] Wu, Guofang[1] Ren, Haiqing[1] Su, Yanwei[2]

第一作者：龚迎春

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, China; [2] Key Laboratory of wood science and technology, Zhejiang, China

会议论文集：WCTE 2018 - World Conference on Timber Engineering

会议日期：August 20, 2018 - August 23, 2018

会议地点：Seoul, Korea, Republic of

语种：英文

外文关键词：Elastic moduli - Laminating - Mechanical properties - Stiffness - Timber

年份：2018

摘要：The objective of this study was to obtain the mechanical properties of Japanese Larch (Larix kaempferi Carr.) CLT. The static bending, rolling shear, and compressive tests were performed for full-size Japanese Larch CLT. The analytical approach had been adopted for CLT to estimate the effective bending stiffness and the moment bending resistance. The results showed that the bending and compressive modulus and strength for Japanese Larch CLT increased greatly with the modulus of elasticity of outer layer lumber increased. The rolling shear modulus and strength of each group Japanese Larch CLT had no significant difference around 146MPa and 2.50MPa, respectively. The analytical approach could estimate the mechanical properties of CLT panel especially using shear analogy method and simplified design method. For the effective bending stiffness, the calculated data using shear analogy method were closest to static test data with an average difference of -3.68%, +2.29%, and -4.72% for L-CLT, M-CLT, and H-CLT, respectively. For the moment bending resistance, the calculated data using Gamma method were closest to static test data with an average difference of +12.21%, +4.96%, and +5.39% for L-CLT, M-CLT, and H-CLT, respectively. ? WCTE 2018 Committee.