| 大跨度斜拉桥非线性静风稳定性分析 |
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| 引用本文： | 杨上清,蒋玉川,曾忠.大跨度斜拉桥非线性静风稳定性分析[J].重庆交通大学学报(自然科学版),2012,31(3):369-372,500. |
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| 作者姓名： | 杨上清 蒋玉川 曾忠 |
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| 作者单位： | 四川大学建筑与环境学院,四川成都,610207 |
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| 摘 要： | 在静风稳定线性理论的基础上,综合考虑静风荷载非线性和结构几何非线性的影响,采用增量和内外双重迭代的方法对结构进行分析,可避免线性理论对结构抗静风能力的过高估计。利用ANSYS程序APDL语言编写程序对某大跨径斜拉桥静风稳定性进行全过程计算,分析风速逐级增加的过程中,非线性对静风稳定的影响。
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| 关 键 词： | 大跨径斜拉桥 静风稳定性 非线性分析 |
Nonlinear Aerostatics Analysis of Long-Span Cable-Stayed Bridge |
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| Yang Shangqing
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Jiang Yuchuan
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Zeng Zhong.Nonlinear Aerostatics Analysis of Long-Span Cable-Stayed Bridge[J].Journal of Chongqing Jiaotong University,2012,31(3):369-372,500. |
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| Authors: | Yang Shangqing Jiang Yuchuan Zeng Zhong |
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| Institution: | (College of Architecture & Environment,Sichuan University,Chengdu 610207,Sichuan,China) |
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| Abstract: | On the basis of linear theory of the static wind stability,a method which was used to solve wind-induced lateral torsional buckling problem for long-span cable-stayed bridges was proposed.Nonlinear influences caused by structure and aerostatic load were included in this method,which can aviod overestimating of static wind resistance.The ANSYS/APDL programming language was used to analyze static wind stability of a long span cable-stayed bridge and show the nonlinear influence on aerostatic stability in wind speed increasing process. |
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| Keywords: | long-span cable-stayed bridge aerostatics stability nonlinear analysis |
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