折叠网架的竖向地震响应分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
由于可折叠特性的需要,折叠结构具有一些特殊的约束,难以利用通用的有限元软件直接求解。利用主从自由度约束来模拟剪式单元的真实力学模型,编制折叠网架的动力分析软件,利用振型分解反应谱法和时程分析法对折叠网架的竖向地震响应进行分析,得到一些对工程设计有益的结论。
Foldable trusses can not be computed by general FEA software because of its especial constraint characteristics.The real mechanical model of pantographs is analyzed with master/slave freedom technique in this paper,and the global stiffness matrix is assembled under hybrid-coordinate.A FEA program is developed to computer foldable trusses,including response spectrum method and time history method.Some important static and dynamic behaviors of foldable trusses are introduced according to numerical results.
引文
[1]Shan W.Computer Analysis of Foldable Structures[J].Comput-er&Structures,1992,(42):903-912.
    [2]钱志伟,程万海,刘锡良.折叠结构的受力分析[J].建筑结构学报,1996,(2).48-57.
    [3]陈向阳,关富玲,陈务军.折叠结构的主从自由度分析[J].工程力学,1999,16(5).83-88.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心