摘要
索膜结构的找形和荷载分析的精度及周期是索膜建筑设计的关键.传统的分析方法在保证精度和缩短周期上不能兼顾.在使用动力松弛法和非线性有限元法进行大量算例和工程分析的基础上,提出了结合这两种方法的混合法.这种方法在保证分析精度的同时,可以大大缩短分析的时间.同时考虑到实际工程的复杂性,提出了保证混合法可靠性的零荷载检验方法.结合一个实际工程阐述了这种方法的分析流程,给出了在各种荷载作用下的受力性能.
The precision and period of the shape-finding and load analysis is the key of tension structures＇ design. Based on deep study of the dynamic relaxation method（DRM） and nonlinear finite element method （NFEM） , the combined method was proposed. This method can not only ensure the precision, but also shorten the period of the analysis. Considering the complication of engineering, the zero load method was found to ensure the reliability of the combined method. Finally, the flow of this method used in a engineering＇s design was introduced, and the behavior of this engineering subject to different loads was invesigated.
出处
《空间结构》
CSCD
北大核心
2006年第2期49-55,共7页
Spatial Structures
基金
国家自然科学基金资助项目(69982009)
关键词
张拉膜结构
动力松弛法
非线性有限元法
混合法
零荷载检验
tensile membrane structure
dynamic relaxation method
nonlinear finite element method
combine method
zero load method
