考虑榫头尺寸影响的燕尾榫节点滞回性能分析  

Analysis of the hysteresis performance of dovetail-tenon joints considering the influence of tenon size

作　　者：秦爱国 李军[1] 魏志鹏 胡蓉 于征 QIN Aiguo;LI Jun;WEI Zhipeng;HU Rong;YU Zheng(School of Civil Engineering,Qingdao University of Technology,Qingdao 266525,China;S.Y.Shanghai Technology Engineering&Construction Co.Ltd.,Shanghai 200000,China;Kyoto Institute of Technology,Kyoto 606-8585,Japan;Architectural Engineering Institute,Qingdao Huanghai University,Qingdao 266000,China)

机构地区：[1]青岛理工大学土木工程学院,青岛266525 [2]世源科技工程有限公司上海分公司,上海200000 [3]京都工艺纤维大学,京都606-8585 [4]青岛黄海学院建筑工程学院,青岛266000

出　　处：《青岛理工大学学报》2024年第5期18-26,共9页Journal of Qingdao University of Technology

基　　金：日本学术振兴会基金资助项目(19K01125)。

摘　　要：古建筑木结构中燕尾榫节点的榫头尺寸一直以来采用传统比例进行设计,但收乍角度等榫头尺寸变化对节点抗震性能的影响有待进一步研究。参照已有试验,以榫头宽度、榫头长度以及收乍角度为影响参数,建立含标准试件模型在内的4类有限元模型,施加循环往复荷载进行分析;通过标准试件模型与试验结果对比分析验证了数值模拟方法的有效性;在此基础上得到的4类模型的滞回曲线、刚度退化曲线、骨架曲线和拔榫量。对比分析结果表明:适当提高收乍角度,并在此基础上适当加大榫头长度,有助于提高燕尾榫节点的连接性能和抗震性能。The size of the tenon of dovetail-tenon joints in ancient wooden-structure buildings has always been designed according to the traditional proportion,but the influence of the change in tenon size,including the retraction angle,on the seismic performance of the joint needs to be further studied.Four types of finite element models including the standard specimen model are established by referring to existing experiments and taking the tenon width,tenon length and retraction angle as the influencing parameters.The models are analyzed by applying the cycle loads to itself.The effectiveness of the numerical simulation method is verified by comparing the analysis and the experimental results of the standard specimen model.On this basis,the hysteresis loops,stiffness degradation curves,skeleton curves and degree of tenon pull-out of the four types of models are obtained.The results of the comparison of the above data show that appropriately increasing the retraction angle and the tenon length can improve the connection performance and seismic performance of the dovetail-tenon joints.

关 键 词：燕尾榫节点 榫头尺寸 有限元分析 滞回性能 

分 类 号：TU366.3[建筑科学—结构工程]