摘要
本文从几何非线性有限元分析原理出发,推导了适合于索加强张拉膜结构荷载分析的非线性有限元公式,提出了一种解决膜单元皱折问题的简单、有效方法.编制了计算机程序,从而完成了索加强张拉膜结构的荷载分析问题.最后以日本冲绳第75届博览会入口膜结构作为计算实例,得到了令人满意的结果.
Based on the general theory of geometrical nonlinear problems,the nonlinear finite element formulations for load analysis of tension membrane structures are derived in this paper.A convenient and efficient method to deal with the problem of membrane wrinkling for membrane structures is proposed.And a complete CAD computer programme for load analysis of cable-reinforced tension membrane structures is developed.Finally, the roof of the gate of Expo'75 in Okinawa,Japan is analyzed as an example and the results are satisfactory.
出处
《空间结构》
CSCD
2004年第2期13-16,共4页
Spatial Structures
关键词
索加强张拉膜结构
荷载
非线性有限元
皱折
薄膜材料
cable-reinforced tension membrane structures
load analysis
nonlinear finite element
wrinkling
