【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。更多还原

【Abstract】 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.更多还原