三明毛竹材的顺纹抗拉力学性能分析  

Experimental Research on the Mechanical Properties of Sanming Phyllostachys Pubescen Along the Grain Direction

作　　者：王军芳[1,2] 卢超丰 田尔布 王洪艳[1,2] WANG Jun-fang;LU Chao-feng;TIAN Er-bu;WANG Hong-yan(Sanming University,Sanming 365004,China;Key Laboratory of Bamboo Resources Development and Utilization in Fujian Province College,Sanming 365004,China;Sanming Material and Polytechnic Vocational College,Sanming365004,China)

机构地区：[1]三明学院建筑工程学院,福建三明365004 [2]竹资源开发利用福建省高校重点实验室,福建三明365004 [3]三明医学科技职业学院,福建三明365000

出　　处：《三明学院学报》2021年第6期93-101,共9页Journal of Sanming University

基　　金：福建省中青年教师教育科研项目(JT180508、B201819);福建省科技厅自然科学基金面上项目(2020J01389);三明市科技引导项目资助(2019-S-37);2021年科技创新平台专项经费(KBJ2107,KBJ2106)。

摘　　要：以三明4年竹龄的毛竹为研究对象,测试毛竹材顺纹抗拉强度值。依据JG/T199—2007分别对12个有竹节试件和12个无竹节试件进行试验,获得了它们在不同含水率时的顺纹抗拉强度值;为消除含水率差异的影响,将测试值均转化成含水率为12%时的顺纹抗拉强度值,并与已有文献中相应结果进行比较。结果表明:含水率为12%左右时,竹材顺纹抗拉强度值最为理想;竹节的存在在一定程度上减弱了竹片材的顺纹抗拉强度值;试验获得有竹节和无竹节的毛竹材的顺纹抗拉强度值分别为185.54和156.63MPa。Taking the Phyllostachys pubescens of Sanming as the research object, the experiment was conducted to study the tensile strength of Phyllostachys pubescens with the age of 4 years along the grain direction. According to JG/T 199-2007, 12 specimens with bamboo nodes and 12 specimens without bamboo nodes were tested respectively, and the tensile strength value along the grain at different moisture content was obtained;In order to eliminate the effects of moisture content differences, the test values are transformed into the strength value when the moisture content is 12%, and compared with the corresponding results in the existing literature. The results show that the tensile strength along the grain of bamboo is the best when the moisture content is about 12%;The existence of bamboo nodes weakens the tensile strength along the grain of bamboo sheets to a certain extent;The tensile strength along the grain of Phyllostachys pubescens with bamboo nodes and without bamboo nodes are 185.54 MPa and 156.63 MPa respectively.

关 键 词：毛竹片 顺纹拉伸强度 含水率 竹节 

分 类 号：TU366.1[建筑科学—结构工程]