摘要
主要从有限元的基本原理入手,并采用Block Lanczos方法分析了一个典型的膜结构的振型,并讨论了膜预应力,边索预应力,矢跨比,膜的张拉刚度,边索张拉刚度对膜结构自振频率的影响,得出了各因素对膜结构抗风性能的影响变化规律。
The paper indicates from the basic principle of the finite elements,adopts the Block Lanczos method to analyze the typical membrane structure＇s type,discusses the influence of the membrane prestress,the prestress of the side cable,the rise-span ratio,and the tensioned stiffness of the membrane,and the tensioned stiffness of the side cable on the self vibration frequency of the membrane structure,and concludes the law of the influential changes of all the factors on the wind-resistant performance of the membrane structure.
出处
《山西建筑》
2012年第1期30-31,共2页
Shanxi Architecture
关键词
膜结构
自振振型
自振频率
抗风
membrane structure
self vibration type
self vibration frequency
wind-resistant
