文献类型：期刊文献

英文题名：Experimental and Numerical Studies on the Traditional Penetration Mortise-Tenon Connection Reinforced by Self-Tapping Screws

作者：Guo, Ting[1] Yang, Na[1] Zhou, Haibin[2] Wang, Shuangyong[2]

第一作者：Guo, Ting

通信作者：Yang, N[1]

机构：[1]Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2022

卷号：13

期号：4

外文期刊名：FORESTS

收录：;EI(收录号：20221611980382);Scopus(收录号：2-s2.0-85128168963);WOS:【SCI-EXPANDED(收录号:WOS:000786991400001)】；

基金：This research was funded by the National Key Research and Development Program of China (No.2018YFD0600303), National Natural Science Foundation of China (General Program) (No.51778045), National Key Research and Development Program of China (No. 2018YFC0705600), and 111 Project of China from Ministry of Education and the Bureau of Foreign Expert of China (No.B13002).

语种：英文

外文关键词：penetration mortise-tenon connection; Chinese fir; reinforcement; self-tapping screw; monotonic loading; cyclic loading; numerial simulation

摘要：In this paper, the mechanical performance improvement of traditional penetration mortise-tenon (PMT) connections reinforced by self-tapping screws (STSs) were experimental and numerical studied. Four unreinforced penetration mortise-tenon connections and four STS-reinforced connections were experimentally investigated under monotonic and low-frequency cyclic loading. Besides, the numerical model of PMT connections reinforced by STSs with different diameters and yield strength were established and analyzed.Their failure modes, rotational stiffness, moment-resisting capacity, ductility, and seismic behavior were studied. The experimental results indicated that the STSs reinforcements could enhance the moment-resisting capacity of the penetration mortise-tenon connection. Compared with unreinforced connections, the initial stiffness of STS-reinforced connections increased by 75% with the moment-resisting capacity increasing by 69%, respectively. Furthermore, the STSs reinforcement method can effectively restrict the pull-out of tenon during the whole loading process. Numerical simulation results showed that the yield strength of STS has little effect on the moment-bearing behavior of the connection. The diameter of STS significantly influences the connection performance, and the diameter of 8 mm is suggested.