摘要
索网结构的形状确定和预应力分布是一对相互影响的参数 ,需要通过找形实现。工作阶段的曲面几何受多种因素作用容易出现几何形态失稳 ,这些因素归根结底通过影响预应力分布从而影响曲面几何。通过考虑自重和初始预应力分布差异的参数分析 。
The configuration of cable-nets structure is influenced by prestress distribution,which can be established by form-finding.Because of small stiffness,the form of cable-nets structure is changed easily in work phases.On the basis of the parameters analysis including self-weight and prestress distribution,the main cause which influences the form of cable-nets structure is find.
出处
《四川建筑科学研究》
2004年第2期13-15,共3页
Sichuan Building Science
关键词
索网结构
有限元
找形
形态稳定
预应力
cable-nets structure
nonlinear finite element
form-finding
