摘要
以殿堂式木结构为研究对象,通过理论分析和数值模拟推导出了榫卯节点和铺作层之间的半刚性单元的刚度矩阵,即采用组合式弹簧单元模拟柱脚与础石、榫卯节点和铺作层之间的连接单元,给出了动力方程,并通过对《营造法式》中的殿堂和厅堂模型结构的分析,求解出了结构各个层面的地震动力放大系数,为木结构古建筑的保护、维修和加固提供理论依据和技术参考,对现代建筑结构抗震研究也具有借鉴意义。
Taking the Chinese ancient palace as a research object, using theoretical analysis and numerical simulation, the semi-rigid joints square matrix of the mortise-tenon joints and the p＇u-z＇uo layers are deduced, which are the modular springg unit of column with toots, and mortise-tenon joints with the tou- kung （ the p＇u-z＇uo ） layers. The vibration isolation is researched by means of the dynamic equilibrium equation of the timber structure. The seismic dynamic magnification factors of every layer on the model of the palace and the hall of Chinese ancient timber structural drawings by the Ying-tsao fa-shih are obtained. The result provids a theoretical foundation of protection, maintenance and reinforcement for ancient timber structure as well as the technical reference. It also gives up significant enlightenment to the aseismatic research and design of modern structure.
出处
《西北地震学报》
CSCD
北大核心
2008年第3期239-244,共6页
Northwestern Seismological Journal
基金
西安市科技局资助项目(GG05171)
西安建筑科技大学2007年基础研究基金项目(JC0722)
关键词
中国木结构古建筑
榫卯节点
铺作层
半刚性单元
有限元分析
地震反应分析
Chinese ancient timber structure
Mortise-tenon joint
Bracket set layers
Semi-rigid joint
Finite element method
Earthquake response
