| 单层球面网壳结构的几何非线性分歧屈曲的研究 |
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| 引用本文： | 张增山.单层球面网壳结构的几何非线性分歧屈曲的研究[J].山东建筑工程学院学报,1996(4). |
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| 作者姓名： | 张增山 |
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| 作者单位： | 青岛市建筑工程质量监督站 |
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| 摘 要： | 利用几何非线性有限元方法，分析了单层球面网壳的稳定性。推导了Ｕ．Ｌ．坐标系下的几何非线性空间梁单元，采用柱面弧长法为加载策略，求解结构的平衡路径。利用“位移扰动法”对单层网壳结构的分歧屈曲进行了一些探讨，求得了扁拱和一单层球面网壳的分歧路径
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| 关 键 词： | 单层球面网壳 几何非线性 分歧屈曲 |
THE GEOMETRICALLY NONLINEAR BIFURCATION BULKING OF SINGLE LAYER LATTICE DOME |
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| Zhang Zengshan.THE GEOMETRICALLY NONLINEAR BIFURCATION BULKING OF SINGLE LAYER LATTICE DOME[J].Journal of Shandong Institute of Architecture and Engineering,1996(4). |
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| Authors: | Zhang Zengshan |
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| Affiliation: | Construction Engineering Quality Supervision Station of QingDao |
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| Abstract: | In this paper, the stability of the single layer lattice dome is analysed by the geometrical nonlinear finite element method. The geometrical nonlinear stiffness matrix is derived under U. L. cordinates and the load deflection response is analyzed by cylindrical arc length method. In this paper bifurcation buckling of a single layer lattice dome is studied by displacement perturbation method, the bifurcation pathes of shallow arc and a single layer lattice dome are abtained. |
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| Keywords: | single layer latticed dome geometrical nonlinear bifurcation buckling |
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