古木建筑榫卯连接M-θ相关曲线模型研究  

Research of Interaction Curves Model of Mortise-Tenon Joint in Historic Timber Buildings

作　　者：杨艳华[1] 王俊鑫[2] 徐彬[3] 

机构地区：[1]昆明冶金高等专科学校,云南昆明650033 [2]昆明理工大学建筑工程学院,云南昆明650224 [3]云南广播电视大学,云南昆明650223

出　　处：《昆明理工大学学报（理工版）》2009年第1期72-76,共5页Journal of Kunming University of Science and Technology(Natural Science Edition)

基　　金：云南省教育厅科学研究基金项目(项目编号:6Y0076D)

摘　　要：通过对木结构榫卯连接模型试验及其试验结果分析,得出影响连接刚度的主要因素是替木尺寸,榫头尺寸和卯孔对柱的削弱程度.利用最小二乘法对试验数据进行处理,得出榫头尺寸及卯孔对刚度影响的规律.在原有的3参数幂函数模型的基础上,建立适合木结构榫卯连接的4参数幂函数弯矩-转角的相关曲线模型.本文基本结论可以为古木结构的研究和修缮工作提供一些理论帮助.By the mortise - tenon joints model test in timber structure and the analyses of its results, it is concluded that the joint stiffness is mainly affected by the sizes of the substitute timber, the tenon and the degradation degree caused by the mortise to the post. The method of least square is adopted to deal with the test data, rendering the rule of the influence by sizes of the tenon and mortise. Based on the three - factor exponential function model, the four - factor exponential function related curves model of the moment - rotation angle is established, which is fit to the mortise - tenon joints of timber structure. The conclusions of this paper may provide some theoretical help for the timber structure research and maintenance of historic timber buildings.

关 键 词：榫卯连接 半刚性 幂函数模型 最小乘法 古建筑 木结构 

分 类 号：TU366.2[建筑科学—结构工程]