[1]李哲瑞,刘龙杰,薛建阳,等.传统民居木结构柱-插梁透榫插销节点抗震性能试验研究[J].西安建筑科技大学学报(自然科学版),2024,56(05):730-740.[doi:10.15986.j.1006-7930.2024.05.012]
　LI Zherui,LIU Longjie,XUE Jianyang,et al.Experimental study on seismic behavior of mortise-and-tenon joints with inserted pegs for beam to column connection in traditional timber residences[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Ed,2024,56(05):730-740.[doi:10.15986.j.1006-7930.2024.05.012]
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传统民居木结构柱-插梁透榫插销节点抗震性能试验研究
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
56
期数:
2024年05期
页码:
730-740
栏目:
出版日期:
2024-10-28

文章信息/Info

Title:
Experimental study on seismic behavior of mortise-and-tenon joints with inserted pegs for beam to column connection in traditional timber residences
文章编号:
1006-7930(2024)05-0730-11
作者:
李哲瑞1; 2; 刘龙杰1; 薛建阳1; 2; 五十田博3; 北守顕久4; 薛皓1
（1西安建筑科技大学 土木工程学院，陕西 西安 710055; 2西安建筑科技大学 结构工程与抗震教育部重点实验室，陕西 西安 710055; 3京都大学 生存圈研究所，日本 京都府 6110011; 4大阪产业大学 工学部，日本 大阪府 5740013）
Author(s):
LI Zherui1; 2;  LIU Longjie1;  XUE Jianyang1; 2;  ISODA Hiroshi3;  KITAMORI Akihisa4;  XUE Hao1
（1School of Civil Engineering, Xi′an Univ. of Arch. & Tech., Xi′an 710055, China;
2Key Lab of Structural Engineering and Earthquake Resistance of the Ministry of Education(XAUAT), Xi′an 710055, China;
3Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto 6110011, Japan;
4Faculty of Engineering, Osaka Sangyo University, Osaka 5740013, Japan）
关键词:
木结构; 榫卯节点; 抗震性能; 拟静力试验; 木销连接
Keywords:
timber structure;  mortiseandtenon;  seismic performance;  quasistatic test;  wooden pegged joint
分类号:
TU366.203；TU311.41
DOI:
10.15986.j.1006-7930.2024.05.012
文献标志码:
A
摘要:
以传统民居柱插梁透榫插销榫卯节点为研究对象，结合节点拟静力试验和透榫插销单元剪切试验，分析节点刚度、承载能力、耗能、转动中心的非对称性及其形成机制，讨论不同加载模式对透榫插销单元抗剪性能的影响，进一步推导节点转动刚度和内应力屈服次序.结果表明：透榫插销节点正、负向转动屈服模式分别为插销连接处剪切屈服和榫头上下表面横纹嵌压屈服，对应转动初始刚度和屈服弯矩差异达3倍以上，主要受梁端对柱挤压和木销拉结作用影响；节点屈服后，木销连接处残余变形导致节点拉向转动时拔榫难以复位，梁端与柱表面脱离，仅通过榫头上下表面挤压摩擦产生抵抗弯矩；拉向、拉压循环加载模式下，透榫插销单元失效模式为插销处剪切和弯曲断裂；初始剪切刚度和屈服荷载均高于单调加载，但极限位移仅为单调加载的56%和78%，因插销连接失效对应整体节点极限转角为008~011 rad.通过分别推导榫头卯口挤压内力和梁端柱拉、压内力形成的弯矩，叠加获得节点弯矩转角关系与试验值吻合良好.
Abstract:
This article takes the mortiseandtenon joints with inserted pegs in traditional timber residences as the research object. By combing quasistatic tests on the joint specimens and shear tests on the pegged tenons, the mechanism of asymmetrical rotational performance of the joints and its effects on stiffness degradation, energy dissipation, tenon withdrawal deformation, and movement of rotation center were analyzed. The rotational stiffness and yield sequence of internal stress were further derived. The results show that yield modes of the joint in the positive and negative rotational directions are shear yield at the joint of the pegged tenon, and embedment yield perpendicular to the grain on the upper and lower surfaces of the tenon, respectively. Both the initial stiffness and yield moment difference of positive and negative rotation of the joints are more than three times, mainly influenced by the compression of the beam end on the column, and the tensile effect of the pegged tenon. In the elasticplastic deformation stage, the residual deformation at the wooden peg makes it difficult for the tenon withdrawal deformation to return with the loading direction changes. This causes the beam end to detach from the column surface in the negative rotation direction, only resisting the compression and friction between the tenon and mortise to generate moment resistance. In addition, under pullcyclic and pullpush cyclic loading modes, the initial stiffness and yield shear load of the pegged tenon are higher than those under monotonic loading mode, while the ultimate displacement is only 56% and 78% of that under monotonic loading, corresponding to ultimate rotation angle of the integral joint being 0.08~0.11 rad. By deriving the internal moments corresponding to embedment of the tenon and the column side, the obtained momentrotation relationship of the joint is obtained and in good agreement with experimental values.

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备注/Memo

备注/Memo:
收稿日期:20240501修回日期:20240806
基金项目:国家自然科学基金（52408210）；陕西省博士后科研项目（2023BSHYDZZ143）
第一作者:李哲瑞（1992—），女，工学博士，讲师，主要从事木结构与木质材料力学性能研究.Email: lizherui@xauateducn
通信作者:薛建阳（1970—），男，工学博士，教授，主要从事钢与混凝土组合结构及木结构抗震研究.Email: jianyang_xue@163com
更新日期/Last Update: 2024-11-22