Nail Holding Performance of Self-Tapping Screws on Masson Pine and Chinese Fir Dimension Lumbers

作     者：De Li Bengang Zhang Yuan Tu Guoming Xiao Meifen Tian Xiaoxue Xu Xiao Zhong Qiaoyan Zhang Zhigang Wu Jiankun Liang 

作者机构：College of ForestryGuizhou UniversityGuiyang550025China Forestry Science and Technology Promotion StationXifeng County Bureau of Natural ResourcesGuiyang551100China Forest Park Management SectionZhazuo State-Owned Forest FarmGuiyang550299China College of Civil EngineeringKaili UniversityQiandongnan556011China 

出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)

年 卷 期：2023年第11卷第10期

页      面：3725-3738页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0907[农学-林学] 080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0802[工学-机械工程] 

基　　金：funded by the National Natural Science Foundation of China (32160348) Forestry Science and Technology Research Project of Guizhou Forestry Bureau (J21 andC14) Department Program of Guizhou Province (1Y128) the Cultivation Project of Guizhou University of China (37) 

主　　题：Masson pine Chinese fir self-tapping screws nail holding performance 

摘      要：Screw connection is a type most commonly applied to timber *** important commercial tree species in China,Masson pine and Chinese fir have the potential to prepare wood *** this study,the effects of the diameter of the self-tapping screw and the guiding bores on the nail holding performance on different sections of Masson pine and Chinese fir dimension lumbers were mainly *** results showed that:(1)The nail holding strength of the tangential section was the maximum,followed by that of the radial section,and that of the cross section was the minimum.(2)The nail holding strength of Masson pine was higher than that of Chinese fir.(3)The nail holding strength grew with the increase in the diameter of self-tapping screws,but a large diameter would lead to plastic cracking of the timber,thus further affecting the nail holding *** pine and Chinese fir reached the maximum nail holding strength when the diameter of self-tapping screws was 3.5 mm.(4)Under a large diameter of screws,prefabricated guiding bores could mitigate timber cracking and improve its nail holding strength.(5)Prefabricated guiding bores were more necessary for the screw connection of Masson *** results obtained could provide a scientific basis for the screw connection design of Masson pine and Chinese fir timber structures.