导孔直径对木结构用规格材握螺钉力性能的影响  

Effects of Vessel Diameter on Screw Withdrawal Strength in Dimension Lumber of Wood Structure

作　　者：阙泽利[1] 杨玲[1] 王菲彬[1] 朱续娜 潘彪[1] 

机构地区：[1]南京林业大学材料科学与工程学院,江苏南京210037

出　　处：《西北林学院学报》2014年第5期195-198,共4页Journal of Northwest Forestry University

基　　金："十二五"国家科技计划(2012BAD24B010204);江苏高校优势学科建设工程资助项目(PAPD201104)

摘　　要：探讨导孔直径对木结构用规格材（云杉、落叶松、花旗松、马尾松）握螺钉力性能的影响。结果表明：导孔直径对木结构用规格材的握螺钉力影响较大,随着导孔直径的增大,握螺钉力会缓慢降低,当导孔直径在2～3mm时,握螺钉力相对稳定;随着导孔直径进一步增大,握螺钉力会急剧下降。4种规格材的纵面握钉力从大到小的顺序是马尾松、花旗松、云杉、落叶松。Effects of vessel diameters on the screw withdrawal power in dimension lumber（spruce,larch,Douglas fir,mason pine）of wood structure were investigated.The results revealed that vessel diameter had a strong influence on dimension lumber of wood structure.As the vessel diameter increased,the withdrawal power would be slowdown.When vessel diameters were 2to 3mm,the withdrawal power was stable.As the vessel diameter further increased,the withdrawal power would be sharply reduced.The screw withdrawal strength of 4lumbers was in an order of mason pine〉Douglas fir〉spruce〉larch.

关 键 词：导孔直径 规格材 握螺钉力 

分 类 号：S781.64[农业科学—木材科学与技术]