摘要
利用非线性有限元法对三向球面空腹网壳稳定性能进行了研究,采用了特征值屈曲分析和非线性屈曲分析两种方法来考查了三向球面空腹网壳的屈曲模态和失稳全过程。通过大规模的几何参数分析得到了不同矢跨比、网壳厚度和不同支承条件下的荷载—位移曲线和极限承载力。最后将三向球面空腹网壳与相同用钢量的单层网壳进行了对比。
Based on nonlinear finite element method, the stability of three-dimensional reticulated vierendeel shells are analysed. The buckling modal and the whole course of analysis methods, the eigen-bucking analysis and nonlinear bucking analysis. instability are shown by two Through large-scale analysis of the geometrical parameters, including the rise-to-span, thickness of the shell and boundary condition, the ultimate capacity and the load-displacement curve are obtained. Finally, the comparison between three-dimensional reticulated vierendeel shell and the single layer shell with the same steel consumption is carried out.
出处
《低温建筑技术》
2010年第8期56-58,共3页
Low Temperature Architecture Technology
