木构件材料力学性能快速检测研究  

Rapid Test on Mechanical Properties of Wooden Components

作　　者：孙燕良[1] 张厚江[1] 朱磊[1] 闫海成[1] 王喜平[2] 廖春晖[1] 

机构地区：[1]北京林业大学工学院,北京100083 [2]美国农业部林产品实验室,wi537262398

出　　处：《西北林学院学报》2012年第2期245-248,260,共5页Journal of Northwest Forestry University

基　　金：北京市公益应用项目"北京市古建筑木结构安全状况无损检测技术研究与应用"(Z0905060166090)

摘　　要：木材的各项力学性能是反映木材综合利用价值的重要指标,如何快速预测出其各项指标,更好的运用木材,一直是相关工作者努力的方向。以木建筑常用材料——红松和落叶松2种木材为研究对象,运用微钻阻力仪和应力波测试仪分别对其进行力学性能快速检测,并将检测结果与传统力学试验机检测结果进行对比分析。结果表明,这2种方法都适于快捷检测评估木构件材料力学性能,其中对于红松,宜选用应力波速度检测弹性模量和抗弯强度2项性能;对应落叶松来讲,宜选用微钻阻力检测弹性模量、抗弯强度、抗压强度3项性能。Mechanical properties of wood are important indicators to reflect its comprehensive utilization value. How to predict these indicators fast and use wood better, is always troubled with related workers. Based on the common material of wooden structures - Korean pine and larch, the article tested mechanical properties of them respectively with micro-drilling resistance meter and stress wave tester, and compared the results with those tested by the traditional mechanical tester. It was found that both the two methods are suitable for quick evaluation of mechanical properties of wooden component. The micro-drilling resistance method is more suitable for measurement of mechanical properties of larch materials such as bending modulus, compressive strength and bending strength, while the stress wave is more suitable for the estimation of the bending modulus and bending strength of the Korean pine materials.

关 键 词：木建筑 力学性能 微钻阻力仪 应力波测试仪 快速检测 

分 类 号：S791.08[农业科学—林木遗传育种]