摘要
局部双层网壳结构是空间结构中常见的结构形式,自振特性分析有助于进一步分析结构在地震作用下的响应特性。ANSYS和FEAP有限元分析方法对结构分别进行了计算,得出了结构的基频和振型,通过对两者的比较和分析,了解了局部双层网壳结构的自振特性。
Reticulated shell has beautiful structure shape and excellent mechanics performance.It is one kind of space structures used extensively in recent years.This paper analyses the seismic performance on the optimum partial double layer reticulated shell under the present situation.The paper calculates the natural vibration on the optimum partial double layer reticulated shell by two different finite element methods,analyses the dynamic feature and gains the elementary parameters.
出处
《华北地震科学》
2008年第4期41-44,共4页
North China Earthquake Sciences
关键词
网壳结构
自振特性
振型
频率
Reticulated shell
Vibration natural frequency
Vibration modes
Frequency
