摘要
本文对预应力张弦梁结构的形态分析做了进一步的探讨,从工程应用的角度重新定义了该类结构的受力状态,提出了以初应变为媒介的改进的逆迭代法,可以成功地求解预应力张弦梁结构的初始态预应力分布和相应的零状态放样几何,并可保持结构的完整性,进行后续的荷载态分析。
This paper provides a further discussion on the form finding method for beam string structures(BSS). The zero state and the initial state of BSS are first redefined from engineering point of view. The modified inverse iteration method is then proposed on the basis of initial strains. Using this method, the prestress distributions at initial state and the corresponding geometry at the zero state can be obtained. The advantage of this method is that the integrality of the structure is maintained and the subsequent loading analysis can be carried out.
出处
《空间结构》
CSCD
2002年第4期29-35,共7页
Spatial Structures
关键词
预应力张弦梁
形态分析
零状态
初始态
prestressed beam string structures
form finding analysis
zero state
initial state
