王  蕾  王  炜        （河北农业大学城建学院土木系  保定 071001）

    孙晓辉       （保定十方商贸城开发有限公司  071000）

[提要]  依据梁-柱单元非线性有限元理论，编制了网壳结构几何非线性分析程度，分析了不同矢跨比、不同双层杆件布置区域的两种跨度的局部双层网壳的静力、稳定特性，比较了变化规律，确定了不同矢跨比下，单层网壳边界处布置双层杆件的合理范围。所得结果可为类似结构设计提供依据。
[关键词]  局部双层网壳  几何非线性  静力  稳定

Based on nonlinear finite element theory of beam-column element, the geometrically-nonlinear static stability analysis program was made. With this program the static stability behavior of partial double layer reticulated shell is studied at different height-span ratio and different range for two span laying double layer members. The rational range for laying double layer members is determined, which can be as a reference to similar structure design.
Keywords:  partial double layer reticulated shell; geometrically-nonlinear; static; stability