中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2012, Vol. 31 ›› Issue (3): 369-372.DOI: 10.3969/j.issn.1674-0696.2012.03.04

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大跨度斜拉桥非线性静风稳定性分析

杨上清,蒋玉川,曾忠   

  1. 四川大学建筑与环境学院,四川成都610207
  • 收稿日期:2011-10-02 修回日期:2012-02-20 出版日期:2012-06-15 发布日期:2015-03-12
  • 作者简介:杨上清(1991—),男,四川巴中人,本科生,主要从事岩土边坡工程稳定性方面的研究和学习。E-mail:282122583@qq.com。

Nonlinear Aerostatics Analysis of Long-Span Cable-Stayed Bridge

Yang Shang-qing,Jiang Yu-chuan,Zeng Zhong   

  1. College of Architecture & Environment,Sichuan University,Chengdu 610207,Sichuan,China
  • Received:2011-10-02 Revised:2012-02-20 Online:2012-06-15 Published:2015-03-12

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。

关键词: 大跨径斜拉桥, 静风稳定性, 非线性分析

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.

Key words: long-span cable-stayed bridge, aerostatics stability, nonlinear analysis

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