Bending Properties of Glulam Made by Domestic Fast-Growing Chinese Fir
OU Jiajia
ZHANG Yi
LONG Weiguo
CHEN Di
ZHONG Yong
Abstract：To better utilize the vast fast-growing forest resources in China,the bending properties of glulam made from domestically produced machine graded laminas of fast-growing Chinese fir were studied.The results show that the production of laminas with strength grade M22 and M18 accounts for more than 80％.The bending properties of glulam are significantly influenced by the grade and lay-up methods of the laminas,and the coefficient of variation of the bending properties is significantly reduced compared to individual lamina.The highest strength grade of glulam made by domestic fast-growing Chinese fir is TCT40,in which TCT32 or TCYD32 account for most of the production,and the design value of bending strength exceeds the value specified in GB 50005-2017 Standard for Design of Timber Structures.
Keywords：fast-growing Chinese firglulammachine gradedfull-scale testbending property
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1286-1291 )