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http://dx.doi.org/10.9712/KASS.2012.12.2.081

Equilibrium Stress Mode Determination of Tensegrity Structure by CAD  

Kim, Jae-Yeol (협성대학교 건축공학과)
Publication Information
Journal of Korean Association for Spatial Structures / v.12, no.2, 2012 , pp. 81-88 More about this Journal
Abstract
Cable dome structures are composed of cables-masts and the cables should be in pre-tension since a structure without pre-tension is not stable. Under the pretension, self equilibrium stress state is the main characteristic of a cable dome structure. In this paper, a new method based on the basic principle of closed force polygon for equilibrium system is proposed for the determination of self-equilibrium mode of cable dome structure. The proposed method which is called geometric method has the unique characteristic of visualization of the force mode needed for maintenance of self-equilibrium. The basic theory for a self equilibrium of structure is that the summation of forces at each joint without any external load should be zero. The simplicity of the method which involves only drawing close polygon with the aid of suitable CAD software has been illustrated by means of a example. The results compared with mechanical calculation and existed method and shows good agreement.
Keywords
cable dome; force polygon; geometric method; self-equilibrium mode;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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