摘要
中国木结构古建筑不仅是我国广大劳动人民的劳动和智慧相结合的产物,也是我国重要的物质文化遗产和文化瑰宝。本文把嘉峪关光化楼作为研究对象,为木构古建筑的保护提供理论依据。通过ANSYS软件建立了嘉峪关光化楼三维有限元精细模型。通过子空间法,对光化楼进行了模态分析,得到了其前15阶自振周期和前6阶振型。发现结构以中低频自振为主;前两阶振型为水平方向的平动,第三阶振型为结构整体扭转,第四阶振型为一层柱的扭转,五、六阶振型为二、三层柱的绕不同方向的扭转。
The ancient Chinese wooden structure is not only a product of the combination of labor and wisdom of the working people of China,but also an important material cultural heritage and cultural treasure of China.This paper regarded Jiayuguan Guanghua Building as the research object and provided theoretical basis for the protection of ancient buildings.The 3 D finite element model of Jiahuaguan Guanghua Building was established by ANSYS software.Through the subspace method,the modal analysis of the Guanghua Building was carried out,the first 15 vibration periods and the first 6 vibration modes were obtained.It is found that the structure is mainly low-frequency self-vibration;the first two vibration modes are horizontal.In the translation,the third vibration mode is the overall torsion of the structure,the fourth vibration mode is the torsion of a layer of columns,and the fifth and sixth vibration modes are the torsion of the second and third-layer columns in different directions.
作者
巴振宁
刘冰松
焦鹏
高商
Ba Zhenning;Liu Bingsong;Jiao Peng;Gao Shang(School of Civil Engineering,Tianjin University,Tianjin 300072,China;Tianjin International Engineering Institute,Tianjin University,Tianjin 300072,China;Jiayuguan Silk Road(Great Wall)Culture Research Institute,Jiayuguan 735100,China)
出处
《建筑结构》
CSCD
北大核心
2019年第S02期362-366,共5页
Building Structure
基金
嘉峪关世界文化遗产监测系统工程(二期)嘉峪关木构城楼现状结构分析与状态评估研究(JYGZCDL2017024G).
关键词
模态分析
古代木结构
嘉峪关
有限元分析
modal analysis
ancient wooden-structure
Jiayuguan Pass
finite element analysis
