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通过对不同立地条件、不同年龄、竹竿不同部位麻竹材基本密度和力学性质的测定和分析,结果表明:影响麻竹材基本密度和力学性质因素的重要程度为竹竿部位>年龄>立地条件;竹竿部位和年龄对麻竹材基本密度和力学性质影响均极显著,立地条件对麻竹材基本密度、顺纹抗压强度和弦向冲击韧性影响极显著,对麻竹材弦向抗弯强度和顺纹抗剪强度影响不显著。麻竹材基本密度和力学性质表现为:上部>中部>下部,随立地条件高而减小,随年龄增大而提高,麻竹材作为结构用材的适宜采伐年龄为4~5年。
The results showed that the main factors that affect the basic density and mechanical properties of Phyllostachys pubescens were bamboo pole position> age> site condition; bamboo pole site And age had significant effects on the basic density and mechanical properties of Ma bamboo, and the site conditions had a significant effect on the basic density, the compressive strength of the marsh bamboo and the impact toughness of the chord, and had significant influence on the flexural strength and the shear strength Not obvious. The basic density and mechanical properties of hemp bamboo showed as follows: upper part> middle part> lower part, which decreased with the increase of standing conditions and increased with age. The appropriate cutting age of hemp bamboo as structural material was 4-5 years.