高地竹与毛竹主要物理力学性能的比较研究

非洲高地竹(Arundinaria alpina)是埃塞俄比亚的重要竹种资源之一,但其性能以及增值利用的研究非常少。本研究测定了高地竹的主要物理力学性能,并以毛竹为对照物进行分析。结果发现:高地竹尖削度小,竹壁厚,基本密度低,干缩率较大;弦向抗弯弹性模量比毛竹高,但顺纹抗压强度、弦向抗弯强度以及顺纹抗剪强度相对毛竹材较低。高地竹在原竹建筑利用和竹质人造板加工利用方面都具有可行性。

A Comparative Study of Main Physical and Mechanical Properties of Arundinaria alpine and Phyllostachys pubescens

African highland bamboo （Arundinaria alpine） is one of the most important bamboo species in Ethiopia, but little studies has been done on its properties and value-added utilization. In this study, some main physical-mechanical properties of A.alpine were tested and analyzed. Compared with Moso bamboo （Phyllostachys pubescens）. The results showed that A.alpine had the small taper, higher wall thickness, lower basic density and higher shrinkage, and the tangential modulus of elasticity in static bending were higher than that of Moso bamboo while compressive strength parallel to grain, tangential bending strength and shearing strength parallel to grain were lower. It is concluded that A.alpine is feasible to be used in construction and bamboo-based panel processing.