| 大跨度钢管混凝土拱桥非线性稳定性分析 |
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| 引用本文： | 崔军,王景波,孙炳楠. 大跨度钢管混凝土拱桥非线性稳定性分析[J]. 哈尔滨工业大学学报, 2003, 35(7): 876-878 |
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| 作者姓名： | 崔军 王景波 孙炳楠 |
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| 作者单位： | 1. 浙江大学,土木系,浙江,杭州,310027
2. 黑龙江工程学院,路桥系,黑龙江,哈尔滨,150050 |
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| 摘 要： | 介绍了同时考虑材料非线性和几何非线性的钢管混凝土拱桥稳定性分析方法，并采用该方法对南浦大桥的稳定性进行了分析．结果表明：几何非线性对该桥稳定性影响较小，而材料非线性对该桥稳定性影响较大．提出在分析钢管混凝土拱桥的稳定性时，可不考虑几何非线性的影响，但材料非线性的影响不容忽略的结论．
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| 关 键 词： | 钢管混凝土拱桥 稳定性 材料非线性 几何非线性 南浦大桥 模型 |
| 文章编号： | 0367-6234(2003)07-0876-03 |
| 修稿时间： | 2003-03-07 |
Nonlinear buckling analysis for large span concrete filled steel tube arc bridge |
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| CUI Jun,WANG Jing-bo,SUN Bing-nan. Nonlinear buckling analysis for large span concrete filled steel tube arc bridge[J]. Journal of Harbin Institute of Technology, 2003, 35(7): 876-878 |
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| Authors: | CUI Jun WANG Jing-bo SUN Bing-nan |
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| Abstract: | The stability of arc ribs is the key to the safety of large span CFST for the smaller width to span. E-lastic theory is used for stability analysis at present, and the biggest buckling factor has been chosen for the safety of bridge. The global buckling analytic method has been recommended considering geometrical nonlin-earity and material nonlinearity, and Chun' an Nanpu large bridge has been analyzed by the method, the result indicate that influence of geometrical nonlinearity is less and material nonlinearity is quite great. It is concluded that the influence of geometrical nonlinearity can be ignored, but material nonlinearity must be considered during analysis of CFST arc bridge. |
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| Keywords: | concrete filled steel-tube arc bridge buckling analyze nonlinear |
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