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当前位置: 首页 > 文章 > 中山杉与落羽杉木材物理力学性质比较研究 东北林业大学学报 2007,35 (2) 6-8
Position: Home > Articles > Physical and Mechanical Properties of Taxodium 'zhongshansha 302' and Taxodium distichum Wood Journal of Northeast Forestry University 2007,35 (2) 6-8

中山杉与落羽杉木材物理力学性质比较研究

作  者：
赵荣军;费本华;虞华强;刘君良
单  位：
中国林业科学研究院木材工业研究所
关键词：
中山杉;落羽杉;密度;干缩;强度
摘  要：
对中山杉302和落羽杉两种木材的部分物理力学性质进行了测试比较分析。结果表明:中山杉302木材的基本密度、气干密度、抗弯强度、抗弯弹性模量和顺纹抗压强度的平均值均比落羽杉高,而弦向全干干缩率、体积全干干缩率、弦向气干干缩率、体积气干干缩率均比落羽杉低;其差异都在0.05水平显著。中山杉与落羽杉树干上段(3.3～5.3m)木材的基本密度、气干密度、抗弯强度和抗弯弹性模量均低于下段(1.3～3.3m);两种木材的气干密度与弦向气干干缩率、体积气干干缩率呈显著的正相关,与抗弯强度、顺纹抗压强度呈正相关,与抗弯弹性模量呈负相关。
译  名：
Physical and Mechanical Properties of Taxodium 'zhongshansha 302' and Taxodium distichum Wood
作  者：
Zhao Rongjun,Fei Benhua,Yu Huaqiang,Liu Junliang(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,P.R.China)
关键词：
Taxodium 'zhongshansha 302';Taxodium distichum;Density;Shrinkage;Strength
摘  要：
The physical and mechanical properties of Taxodium'zhongshansha 302'and Taxodium distichum were studied.Results show that the basic density,air-dry density,bending strength,modulus of elasticity,and compressive strength parallel to grain of T.'zhongshansha 302' are higher than those of T.distichum,and the oven-dry shrinkage and the air-dry shrinkage in tangential and volume are lower than those of Taxodium distichum,and the differences are all prominent at the 0.05 level.The basic density,air-dry density,bending strength and modulus of elasticity of the two species of wood from the lower part of trunk are lower.A significantly positive correlation was found between air-dry density and air-dry shrinkage in tangential and volume,and air-dry density is also positively correlated with bending strength and compressive strength parallel to grain,and is negatively correlated with modulus of elasticity.

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