木材横纹销槽承压强度研究  

Embedment Strength Perpendicular to Wood Grain

作　　者：冯新[1,2] 肖宏彬[1,2] 陈伯望[1,2] 晏班夫[3] FENG Xin;XIAO Hongbin;CHEN Bowang;YAN Banfu(Hunan Engineering Laboratory for Manufacturing and Application Technology of Modern Timber Structural Engineering Materials,Central South University of Forestry and Technology,Changsha 410004,China;College of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004,China;College of Civil Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]中南林业科技大学现代木结构工程材制造及应用技术湖南省工程实验室,湖南长沙410004 [2]中南林业科技大学土木工程学院,湖南长沙410004 [3]湖南大学土木工程学院,湖南长沙410082

出　　处：《建筑材料学报》2023年第6期644-652,共9页Journal of Building Materials

基　　金：国家自然科学基金资助项目(51578554);国家住房和城乡建设部科技项目(2018-K9-069);中南林业科技大学高层次人才引进项目(ZK2022YJ001);湖南省高新技术产业科技创新引领计划项目(2022GK4052)。

摘　　要：设计了3种共计290个木材横纹销槽试件,分析了试验方法、判定方法、有效承压高度、试件尺寸及螺栓直径等因素对木材横纹销槽承压强度的影响,并将试验结果与规范计算结果进行对比.结果表明:现行规范中的木材横纹销槽承压强度试验方法和计算方法均存在一定的局限性;基于本文提出的标准试验方法所得到的木材横纹销槽承压强度,木结构螺栓连接横纹屈服承载力计算结果与试验结果比值的平均值为0.92.Three kinds of 290 embedment perpendicular to wood grain specimens were designed,and the effects of the test methods,determination methods,loaded edge distance,specimen size and bolt diameter on the embedment strength were analyzed.The test results were compared with the calculation results by relevant technical specifications.The results show that the test methods and calculation methods for the measurement of embedment strength perpendicalar to wood grain in the current specifications have certain limitations.Based on the embedment strength obtained from the standard test method proposed in this paper,the average ratio between calculated results and the test results of yield bearing capacity of bolted connections with steel plates of timber simply supported beams loaded perpendicular to grain is 0.92.

关 键 词：木材横纹方向 销槽承压强度 半孔试件 全孔试件 受弯试件 试验方法 

分 类 号：TU366.2[建筑科学—结构工程]