硬头黄竹竹材物理力学性质研究

A Study of Physical-Mechanical Properties of Bambusa rigida Keng

为了有效利用硬头黄竹竹材,对其竹材物理力学性质进行了研究。结果表明:竹秆部位对硬头黄竹的物理力学性质有显著的影响,竹秆由基部至上,体积干缩率、弦向干缩率和径向干缩率逐渐减小,基本密度、气干密度和全干密度逐渐增加,顺纹抗压强度和顺纹抗弯强度亦相应提高。

In order to effectively use Bambusa ngida keng timber, its physical and mechanical properties were studied. The results showed that bamboo culms have a significant effect on physical and mechanical properties ofB. rigida keng. From the bottom to the top of bamboo culm, the volume shrinkage rate, the tangential shrinkage rate and radial shrinkage rate decreased gradually, basic density, air-dry density and dry density increased, and the bending strength and compressive strength of the parallel to grain also increased accordingly.