斜螺钉钢板连接正交胶合木力学性能研究  

STUDY ON PERFORMANCE OF STEEL-TO-TIMBER JOINTS WITH INCLINED SELF-TAPPING SCREWS FOR CROSS-LAMINATED TIMBER STRUCTURES

作　　者：陈志渊 王昕萌 党文杰[2] 董利 陈杰 阙泽利 CHEN Zhi-yuan;WANG Xin-meng;DANG Wen-jie;DONG Li;CHEN Jie;QUE Ze-li(College of Materials Science and Engineering,Nanjing Forestry University,210037,Nanjing,China;Wood Value Promotion and Sustainable Development Center,100049,Beijing,China)

机构地区：[1]南京林业大学材料科学与工程学院,南京210037 [2]木材节约发展中心,北京100049

出　　处：《建筑技术》2020年第3期288-291,共4页Architecture Technology

基　　金：国家自然科学基金(31670566);南京林业大学大学生创新项目(2018NFUSPITP177).

摘　　要：针对斜螺钉连接钢板和正交胶合木的组合体系进行抗剪试验,探究自攻螺钉与木材纹理方向间的夹角及拉剪和压剪模式对木材的破坏形式、自攻螺钉的变形和荷载与自攻螺钉位移的关系等力学性能的影响。结果表明,在拉–剪模式下,组合体系的抗剪承载力随夹角的增大而减小;在压–剪模式下,随夹角的增大而增大;刚度均随夹角的增大而减小。In this paper,the shear test was carried out for the composite system of inclined screw connected steel plate and cross-laminated timber,to explore the influence of the angle between selftapping screw and wood grain direction,as well as the influence of tension shear and compression shear modes on the failure mode of wood,the deformation of self-tapping screw and the relationship between load and displacement of self-tapping screw.The test results show that the shear bearing capacity of the composite system decreases with the increase of the angle under the mode of tensionshear and it increases with the increase of the angle under compression shear,the stiffness decreases with the increase of the angle.

关 键 词：钢–木组合 斜螺钉连接 抗剪承载力 正交胶合木 

分 类 号：TU112[建筑科学—建筑理论]