摘要
网壳结构是空间结构中常见的结构形式,利用ANSYS有限元分析方法对局部双层网壳结构进行了地震作用时程分析计算,得到了结构杆件的内力、节点和位移,对结构动力响应在线性、几何非线性及几何和材料非线性情况下进行了分析对比,分析结果表明:网壳结构在二维地震作用下应该考虑几何和材料非线性的影响。
Reticulated shell is one type of common spatial structures.The seismic performance on the optimum partial double layer reticulated shell is calculated by ANSYS,and gains the stress of members and displacements of nodes for the reticulated shell.The dynamic responses on the linearity,the geometric nonlinear and both material and geometric nonlinearities of the structure are analysed and compared with each other.The results indicate that geometric and material nonlinearities can not be neglected in the analysis of the reticulated shell under the two-dimensional earthquakes.
出处
《世界地震工程》
CSCD
北大核心
2010年第2期93-96,共4页
World Earthquake Engineering
基金
国家自然科学基金委重大研究计划项目(90715016)
安徽省自然科学基金项目(070415220)
关键词
网壳结构
地震作用
位移
应力
动力响应
reticulated shell
earthquake
displacement
stress
dynamic response
