摘要
为探讨落叶松胶合木柱顺纹受压性能,对两组不同尺寸的落叶松胶合木柱单轴受压试验研究,分析了胶合木柱轴心受压的破坏形态和破坏机理,得到该批落叶松胶合木抗压弹性模量为14.01 GPa,抗压强度为45.98 MPa,比例极限强度为（0.55～0.70）σL,并给出了应力-应变关系本构方程及相关经验参数。
The main purpose of the study is aimed at investigating the mechanical properties of larch glue-lumber column under condition of compression parallel to grain. By means of experimental study on two sets of larch glue-lumber column with different dimensions, the failure pattern and mechanism of larch glue-lumber column were analyzed. The compressive modulus of elasticity and compressive strength of larch laminated wood were gained with values of 14.01 GPa and 45.98 MPa respectively. The strength of proportional limit of larch glue-lumber appeared at （0.55--0.70）aL, meanwhile the equation of stress-strain curve and related experience parameters are provided.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2015年第12期113-116,共4页
Journal of Central South University of Forestry & Technology
基金
国家林业局公益性行业科研专项(201304504)
湖南省自然科学基金项目(12JJ5012)
湖南省研究生科研创新基金项目(CX2013B351)
中南林业科技大学研究生科技创新基金(CX2014Z45)
关键词
落叶松胶合木
顺纹受压
本构关系
larch glue-lumber
compression parallel to grain
stress-strain relation
constitutive relation
