轻型木结构夹板剪力墙钉节点试验研究  

Experimental research on MIDPLY shear wall nail joints of light wood structures

作　　者：董伟博[1] 高颖[1] 于志明[1] 袁廷阁[1] 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083

出　　处：《建筑结构》2015年第6期54-57,92,共5页Building Structure

基　　金：林业公益性行业科研专项-低质人工林木材家具制造关键技术研究与示范(201404502);北京市支持中央在京高校共建项目-人工林速生材的结构用集成材材性及应用性能研究

摘　　要：选用SPF规格材(云杉-松木-冷杉)与不同厚度的定向刨花板,依据荷载垂直或平行于木材纹理方向制作60个夹板剪力墙钉连接试件以及20个标准剪力墙钉连接试件,采用美国ASTM D 1761-12试验标准进行单调加载试验。结果表明:采用相同厚度的定向刨花板制作的夹板剪力墙钉节点承载力比标准剪力墙钉节点承载力大;随着夹板厚度的增加,夹板剪力墙钉节点承载力、刚度、延性系数提高;相同厚度OSB制作的顺纹钉节点刚度大于横纹钉节点;12mm厚的定向刨花板比较适合制作夹板剪力墙。Sixty connection specimens of MIDPLY shear wall nail joints and twenty connection specimens of standard shear wall nail joints were made according to perpendicular-to-grain and the parallel-to-grain loads by using SPF dimension lumber （Spruce-Pine-Fir） and OSB with different thickness. Monotonic loading tests were applied to the specimens based on ASTM D 1761-12. Test results show that the bearing capacity of MIDPLY shear wall nail joints is higher than that of standard shear wall nail joint with the same thickness of OSB. With the increase of MIDPLY thickness, the bearing capacity, stiffness, ductility factor of MIDPLY shear wall nail joints are improved. With the same thickness of OSB, the stiffness of the parallel-to-grain nail joint is higher than that of perpendicular-to-grain joint. OSB with 12mm thickness is quite properly used for MIDPLY shear wall.

关 键 词：轻型木结构 夹板剪力墙 钉节点 单调加载 

分 类 号：TU366.2[建筑科学—结构工程]