摘要
提出一种应用线性调整理论求索杆体系初始预应力的方法.该方法可以在不考虑结构刚度的前提下,求解多自应力模态索杆体系的初始预应力,而且大大简化了计算工作量.将该方法应用于求解Levy型索穹顶体系的初始预应力问题,并在此基础上分析了该体系的结构特性.结果表明,运用该方法可以求解Levy型索穹顶体系的初始预应力,而且结构特性分析对今后的结构设计具有一定的指导意义.
A numerical algorithm based on the linear pre-stress of cable-strut structures. Without taking adjustment theory was presented to solve the initial into account the elements stiffness, the initial prestress of the multi self-stress modes structures can be obtained. This can simplify the numerical procedure and reduce time effectively. Finally, the initial pre-stress were investigated using this method for Levy cable dome. And furthermore the structural performances were evaluated comprehensively. The results show the initial pre-stress of Levy cable dome can be solved by this method and the struetural performance analysis has some valuable to be future structural design.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2008年第6期979-984,共6页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(10102010)
关键词
索杆体系
线性调整理论
初始预应力
Levy索穹顶
结构特性分析
cable-strut structure
linear adjustment theory
initial pre-stress
Levy cable dome
structural performance analysis
