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浙江大学学报（理学版）
浙江大学学报（理学版）
CAD&CG 2014推荐论文     
索杆张力结构几何稳定性分析
浙江大学空间结构研究中心
Geometrical stability analysis of cable- strut tensile structures
Dept .of Civil Engineering , Zhe jiang Univ .
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摘要： 索杆张力结构是指由张力索和压杆组成的、具有预应力自平衡的新颖结构体系. 本文详细阐述这种结构的基本概念和结构特征 ,讨论结构静动定体系特性和几何稳定性判定分析方法,指出索杆张力结构应具有一阶无穷小机构的几何稳定体系. 文中采用奇异值分解方法计算结构平衡矩阵的秩,并计算独立机构位移模态和自应力模态. 最后 ,对几种典型的索杆张力结构进行了算例分析.
关键词： 索杆张力结构;  几何稳定性;  奇异值分解    
Abstract: The cable-strut tensile structures are the self-stress equilibrium systems composed by tensional cables and struts. In this paper, the basic concept of the structures was described. The analysis methods of the structural characteristics(statically and kinematically determinate o r indeterminate) and the geometrical stability we re presented. It is indicated that the cable-strut tensile structures are in stable equilibrium with first-order infinitesimal mechanisms. T he ranks o f equilibrium matrix were calculated by employing the singular value decomposition, and the independent modes o f in extensional mechanisms and the states o f self-stress w ere also obtained in the same way. This paper contains some typical examples which illustrate all o f the main points o f the work.
Key words: cable-strut tensile structures    geometrical stability    singular value decomposition
出版日期: 2010-06-02
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罗尧治

引用本文:

罗尧治. 索杆张力结构几何稳定性分析[J]. 浙江大学学报（理学版）, .

LUO Yao -zhi. Geometrical stability analysis of cable- strut tensile structures . Journal of ZheJIang University(Science Edition), .

链接本文:

http://www.zjujournals.com/sci/CN/    或    http://www.zjujournals.com/sci/CN/Y2000/V27/I6/608

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