| 摘要: |
| 阐述的拱的非线性屈曲的2种形式，提出了1种简捷的计算二次分岔屈曲的方法，通过算例证实了其可靠性，最后提出了提高结构承载力和防止发生变形突变的方法。 |
| 关键词: 极值点屈曲 二次分岔屈曲 拱结构 弹性 |
| DOI： |
| 修订日期：2000-09-04 |
| 基金项目:国家自然科学基金资助项目 |
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| Primary Exploration of Secondary Bifurcation Buckling Behavior of Elastic Arch |
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| Abstract: |
| Two kinds of nonlinear buckling are elaborated, and a kind of compact method of solving secondary bifurcation buckling is brought forward, which is identified credible by a sample. An approach to enhance the load carry capacity of the arch and to prevent the arch from the sudden change of the deformation is propounded. |
| Key words: limit point buckling,secondary bifurcation buckling,arch, |
