中文核心期刊
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中国科技核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2013, Vol. 32 ›› Issue (增1): 856-859.DOI: 10.3969/j.issn.1674-0696.2013.sup.1.31

• 桥梁结构分析 • 上一篇    下一篇

大跨度钢管混凝土拱桥的双重非线性稳定性研究

韩兴1，祝兵1，张磊1，朱建波2，向宝山1   

  1. 1.西南交通大学土木工程学院，四川成都610031;2.江苏省交通厅勘测设计院，江苏南京210005)
  • 收稿日期:2013-02-28 修回日期:2013-05-28 出版日期:2013-06-30 发布日期:2015-03-12
  • 作者简介:韩兴(1985—)，男，安徽合肥人，博士，主要从事桥梁动力行为和寿命评估方面的研究。E-mail:hanxing1122@163.com.
  • 基金资助:
    铁道部科技研究开发计划重点课题( 2012G013-C)

Dual Non-Linear Stability Ｒesearch on Long-Span Concrete-Filled Steel Tubular Arch Bridge

Han Xing1，Zhu Bing1，Zhang Lei1，Zhu Jianbo2，Xiang Baoshan1   

  1. 1.School of Civil Engineering，Southwest Jiaotong University，Chengdu 610031，Sichuan，China; 2.Jiangsu Survey ＆ Design Institute of Communications Department，Nanjing 210005，Jiangsu，China)
  • Received:2013-02-28 Revised:2013-05-28 Online:2013-06-30 Published:2015-03-12

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摘要： 以鸭池河桥为工程背景，研究了大跨度钢管混凝土拱桥在材料和几何双重非线性下的稳定性能，对比分析了 单独考虑几何非线性和考虑双重非线性两种情况下桥梁的稳定安全系数和拱顶位移情况，并分析了横撑、拱脚角等 因素对于桥梁稳定的影响。结果表明:双重非线性稳定下桥梁的稳定性的安全系数与弹性状态下相比有着一定的 下降，在实际分析的时候不能忽略双重非线性对于桥梁稳定的影响的结论;单独考虑几何非线性意义不大。

关键词: 钢管混凝土拱桥, 双重非线性, 稳定性分析, 稳定性影响因素

Abstract: Taking Yachihe bridge as the engineering background，the stability performance about the large span concrete filled steel tubular arch bridge under the material and geometrically dual nonlinear condition was studied． The stability safety factors and displacement condition of apex of arch were compared and analyzed，considering geometric nonlinearity and double nonlinear respectively． And the influence factors，such as the cross arm and skew angle，on the stability of the bridge were also analyzed． The results indicate that the safety factor of the stability in the double nonlinear stability of bridge has a certain decline，compared with that in elastic state． So the double nonlinear effect on the bridge stability can’t be ignored in actual engineering． And there is little sense to separately consider the geometric nonlinear．

Key words: concrete-filled steel tubular arch bridge, double non-linear, stability analysis, influence factors of stability

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