| 大跨度钢管混凝土拱桥的非线性空气静力稳定性 |
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| 引用本文： | 颜全胜,李立军.大跨度钢管混凝土拱桥的非线性空气静力稳定性[J].华南理工大学学报(自然科学版),2005,33(12):87-91. |
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| 作者姓名： | 颜全胜 李立军 |
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| 作者单位： | 华南理工大学,交通学院,广东,广州,510640;广州地铁总公司,广东,广州,510038 |
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| 摘 要： | 同时考虑静风荷载非线性和结构几何非线性的影响，运用增量迭代法分析了大跨度钢管混凝土拱桥成桥状态下的非线性空气静力稳定性，编制了相应的计算程序，并结合一座主跨为368m的钢管砼拱桥——茅草街大桥进行了计算，讨论了风荷载的非线性、风力的初始攻角、矢跨比、横撑设置等参数对大跨度钢管混凝土拱桥侧向稳定性的影响．
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| 关 键 词： | 大跨度钢管混凝土拱桥 静风效应 空气静力稳定性 几何非线性 |
| 文章编号： | 1000-565X（2005）12-0087-05 |
| 收稿时间： | 2005-01-01 |
| 修稿时间： | 2005年1月1日 |
Nonlinear Aerostatic Stability of Long-Span Concrete-Filled Steel-Tube Arch Bridge |
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| Yan Quan-sheng,Li Li-jun.Nonlinear Aerostatic Stability of Long-Span Concrete-Filled Steel-Tube Arch Bridge[J].Journal of South China University of Technology(Natural Science Edition),2005,33(12):87-91. |
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| Authors: | Yan Quan-sheng Li Li-jun |
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| Institution: | 1. College of Traffic and Communications, South China Univ. of Tech. , Guangzhou 510640, Guangdong, China; 2. Guangzhou Metro Corporation, Guangzhou 510038, Guangdong, China |
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| Abstract: | The analysis for the aerostatic stability of the long-span concrete-filled steel-tube arch bridge, with an increment iteration approach is presented. The nonlinear effects of the aerostatic load and the structural geometry are considered in the analysis, and a computing procedure is then developed. By analyzing the aerostatic stability of the Maocaojie Bridge with a main span of 368m, the effects of the parameters such as the nonlinearity of the aerostatic load,initial attack angle and the rise-span ratio and lateral bracing on the lateral aerostatic stability of long-span concrete-filled steel-tube arch bridges are finally discussed. |
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| Keywords: | long-span concrete-filled steel-tube arch bridge aerostatic effects aerostatic stability geometric nonlinearity |
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