文献类型：期刊文献

中文题名：中国传统木结构榫卯连接节点力学性能研究进展

英文题名：Research progress on mechanical properties of tenon?mortise joints in traditional Chinese wood structures

作者：武国芳[1] 孙竞成[1] 黄成建[2] 任海青[1] 赵荣军[1]

第一作者：武国芳

机构：[1]中国林业科学研究院木材工业研究所,北京100091;[2]国家林业和草原局竹子研究开发中心,杭州310012

年份：2020

卷号：5

期号：4

起止页码：29-37

中文期刊名：林业工程学报

外文期刊名：Journal of Forestry Engineering

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

基金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017SY036);国家重点研发计划(2017YFC0703501)。

语种：中文

中文关键词：榫卯连接节点;力学性能;抗震性能;加固;有限元分析

外文关键词：tenon-mortise joint;mechanical properties;seismic performance;strength;finite element analysis

分类号：TU366.2

摘要：榫卯是指木结构建筑中柱、梁等构件连接在一起的一种凹凸结合的连接方式。然而,木材作为一种生物材料,随着使用年限的延长,出现的干缩湿胀、开裂变形等损伤会对榫卯连接节点的连接特性造成不良影响,因此,探究木结构榫卯连接节点的力学性能对建筑结构的安全性能具有重要意义。在木结构建筑中,榫卯连接节点的构造多种多样,力学特点和传力机制也各不相同。根据榫卯连接节点在木结构建筑中使用功能将其分为公母榫、直榫、燕尾榫、管脚榫、馒头榫和搭扣榫等六大类,简要介绍了各类榫卯连接节点的结构特点和应用情况。综述了常见榫卯连接节点半刚性的连接特性和节点刚度的求解方法,总结了不同种类榫卯连接节点和模拟残损榫卯连接节点的抗震性能及木结构建筑模型中的榫卯连接节点在人工模拟地震中位移响应和加速度响应的相关研究,概述了常见榫卯连接节点在外力作用下的破坏形式及破坏特征。根据榫卯连接节点的破坏形式,重点从金属构件和纤维增强复合材料两个方面对榫卯连接节点的加固效果进行归纳。总结了有限元分析法在榫卯连接节点力学性能方面的相关研究,指出了榫卯连接节点力学性能研究存在的问题,提出了榫卯连接节点研究的相关建议及其发展方向,以期为榫卯连接节点在现代木结构建筑中的应用提供新思路。
Tenon and mortise joint is a concave-convex connection method used on different wooden components.The protruding part is called tenon,and the concave part is called mortise.The tenon and mortise bite each other and play a connecting role.The columns,beams,truss purlins,rafters and other components in various tenon-mortise structure buildings are connected together to form an elastic frame,which has certain tensile,compressive,flexural and torsional resistance and shows good toughness.Tenon-mortise joints not only can transmit vertical loads and maintain the stability of buildings,but also have good seismic performance.However,as a natural macromolecule biomaterial,with the prolongation of its service life,the natural attribute of wood such as shrinkage,swelling,warping and cracking of instant noodles will adversely affect the connection characteristics of tenon-mortise joints.In addition,the reduction of bearing capacity of joints caused by objective factors such as moth decay,wind-rain erosion and earthquake damage will seriously threaten the overall safety of wooden structures.Therefore,it is of great significance to study the mechanical properties of tenon-mortise joints in wood structures for the safety performance of building structures.In the wood structure building,tenon-mortise joints have various structures,mechanical characteristics and transmission mechanism.According to the function in wood structure building,the tenon-mortise joints are divided into six categories in this paper,i.e.,male and female tenons,straight tenons,dovetail tenons,pipe-foot tenons,dovetail tenons and buckle tenons.The usage characteristics and application of various types of tenon-mortise joints are briefly introduced.On this basis,the semi-rigid connection characteristics of common tenon-mortise joints and the solution methods of joint stiffness are summarized.The seismic performance of different kinds of tenon-mortise joints,the simulated damaged tenon-mortise joints,the related research on the displacement response,and acceleration response of tenon-mortise joints in wood structure building models are presented.Then,the common tenon-mortise joints under external forces are summarized.According to the failure modes of tenon-mortise joints,the reinforcement effects of tenon-mortise joints are summarized from two aspects of metal components and fiber reinforced composites.In addition,the related research on mechanical properties of tenon-mortise joints in wood structures by finite element analysis is reported.Finally,the existing problems of mechanical properties of tenon-mortise joints in wood structures are put forward.The development direction and research suggestions of mortise and tenon joints in modern wooden structures are proposed in order to carry forward the Millennium carpenter culture.