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    王  蕾  王  煒        （河北農(nóng)業(yè)大學(xué)城建學(xué)院土木系  保定 071001）

    孫曉輝       （保定十方商貿(mào)城開(kāi)發(fā)有限公司  071000）

[提要]  依據(jù)梁-柱單元非線性有限元理論，編制了網(wǎng)殼結(jié)構(gòu)幾何非線性分析程度，分析了不同矢跨比、不同雙層桿件布置區(qū)域的兩種跨度的局部雙層網(wǎng)殼的靜力、穩(wěn)定特性，比較了變化規(guī)律，確定了不同矢跨比下，單層網(wǎng)殼邊界處布置雙層桿件的合理范圍。所得結(jié)果可為類(lèi)似結(jié)構(gòu)設(shè)計(jì)提供依據(jù)。
[關(guān)鍵詞]  局部雙層網(wǎng)殼  幾何非線性  靜力  穩(wěn)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