结构指接材破坏特性分析  

Failure Characteristics of Structural Finger Jointed Timber

作　　者：杨亮庆[1] 周亚菲[1] 张倩[1] 刘珊衫 

机构地区：[1]黑龙江省木材科学研究所,哈尔滨150081

出　　处：《林业科技》2015年第5期45-47,共3页Forestry Science & Technology

基　　金：国家林业局公益项目(201304514)

摘　　要：指接点是决定指接材承载性能的关键所在,本文以结构指接材、胶合质量不合格结构指接材和对照材三类试件为对象,研究了其在破坏形貌上的差异,对指接材和对照材的弯曲载荷曲线进行了研究分析。结果表明,指接对木材的破坏特性影响显著,将其影响机理归结为指接部位胶层厚度的增大和应力集中两个方面。For further study the performance prediction, evaluation and process optimization of structural finger jointed timber; Differences in the damage morphology were researched for structural finger jointed timber, glued substandard quality finger-jointed wood structure and control materials; Bending load curve of structural finger jointed timber and control materials were researched. The results showed that the effect of finger jointed on timber was significantly. The effect function was attributed to thick layer thickness and the stress concentration in finger-site.

关 键 词：结构指接材 破坏特性 应力集中 胶层厚度 

分 类 号：S781.23[农业科学—木材科学与技术] TS653.4[农业科学—林学]