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大木竹竹材力学性质的研究

作  者:
苏文会;顾小平;马灵飞;官凤英;岳晋军
单  位:
中国林业科学研究院亚热带林业研究所;浙江林学院工程学院;国际竹藤网络中心
关键词:
大木竹;力学性质;抗压;竹板材
摘  要:
在浙江平阳竹木混交林内,采集3年生大木竹,按标准制成试样,测定了丛生竹种大木竹竹材的各力学性质,并以材性优良的毛竹为参比进行分析。结果发现:大木竹竹材的顺纹抗拉、顺纹抗压、抗劈力和抗弯弹性模量分别为238.0 MPa、75.1 MPa、45.6 N.mm-1和12.6 GPa,比毛竹材的相应值大或与毛竹相当,顺纹抗剪和抗弯强度较毛竹材为低。大木竹的各力学性质间有较密切的相关性,顺拉强度∶顺压强度∶顺剪强度∶抗劈力∶抗弯强度为3.2∶1.0∶0.2∶0.6∶1.8。该研究结果可为大木竹的合理开发利用提供理论依据。
译  名:
Study on Wood Mechanical Properties of Bambusa wenchouensis
作  者:
SU Wen-hui~(1,2),GU Xiao-ping~(1**),MA Ling-fei~3,GUAN Feng-ying~2,YUE Jin-jun~1(1.Research Institute of Subtropical Forestry,CAF,Fuyang 311400,Zhejiang,China;2.International Center for Bamboo and Rattan,Beijing 100102,China;3.School of Engineering,Zhejiang Forestry College,Lin'an 311300,Zhejiang,China)
关键词:
Bambusa wenchouensis;mechanical property;compressive strength;bamboo board
摘  要:
Compared with Moso bamboo,Phyllostachys edulis,the wood mechanical properties of Bambusa wenchouensis,a sympodial bamboo,were studied.The result showed that its tensile strength parallel to grain(δt),compressive strength parallel to grain(δc),cleavage strength(C) and modulus of elasticity in static bending(MOE) were 238.0 MPa,75.1 MPa,45.6 N·mm~(-1) and 12.6 GPa respectively,which were larger than or almost equal to those of Moso bamboo.Its shearing strength parallel to grain(δs) and bending strength(MOR) were smaller.The wood mechanical properties of B.wenchouensis had good relativity with each other,and the δt∶δc∶δs∶C∶MOR was equal to 3.2∶1.0∶0.2∶0.6∶1.8.This study could lay theoretical foundation for proper exploiture and utilization of B.wenchouensis

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