木材科学与技术2023，Vol.37Issue(6)：68-76,9.DOI:10.12326/j.2096-9694.2023083
燕尾榫梁柱节点有限元分析及弯矩-转角关系研究
Finite Element Analysis and Moment-Rotation Relationship of Dovetail Beam-Column Joints
摘要
Abstract
To investigate the feasibility of applying traditional mortise-tenon connection to modern timber structures,a dovetail beam-column joint with Cunninghamia lanceolata,containing mortise heads,tenon mouths,wooden plugs,and wooden wedges was designed.The failure mode,stress development,and moment-rotation relationship of the dovetail beam-column joint were analyzed using ABAQUS software.By analyzing the force mechanism of the joint,the relationships among geometry,physics,and equilibrium of the four compression zones of the mortise head were established.The equations for the initial stiffness and ultimate bending moment were derived.The theoretical formula for the dovetail beam-column joint based on a power function model was proposed.The verification results show that for the initial stiffness and ultimate bending moment,the diffferences between the calculation by this formula and the finite element analysis results are 6.46%and 2.09%,respectively.The formula can be used to predict the ultimate bearing capacity of dovetail beam-column joints.关键词
木结构/燕尾榫梁柱节点/弯矩-转角关系/有限元分析/幂函数模型/极限弯矩/极限承载力Key words
timber structure/dovetail beam-column joint/moment-rotation relationship/finite element analysis/power function model/ultimate bending moment/ultimate bearing capacity分类
建筑与水利引用本文复制引用
陈潘,张凤亮,欧阳金友..燕尾榫梁柱节点有限元分析及弯矩-转角关系研究[J].木材科学与技术,2023,37(6):68-76,9.基金项目
贵州省科技计划项目"新型城市适度超高层装配式住宅设计、施工及使用阶段关键技术研究与示范"(黔科合支撑[2021]一般357) （黔科合支撑[2021]一般357）
贵州省科技计划项目"超低能耗建筑轻质高效夹心保温外墙系统关键技术及应用研究"(黔科合支撑[2023]一般424)". （黔科合支撑[2023]一般424）
