Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (12): 87-91.

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Nonlinear Aerostatic Stability of Long-Span Concrete-Filled Steel-Tube Arch Bridge

Yan Quan-sheng1  Li Li-jun2   

  1. 1.College of Traffic and Communications,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.Guangzhou Metro Corporation,Guangzhou 510038,Guangdong,China)
  • Received:2005-01-01 Online:2005-12-25 Published:2005-12-25
  • Contact: 颜全胜(1968-)，男，博士，教授，主要从事大跨度桥梁研究 E-mail:cvqshyan@scut.edu.cn
  • About author:颜全胜(1968-)，男，博士，教授，主要从事大跨度桥梁研究

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Abstract:

The analysis for the aerostatic stability of the long-span concrete-filled steel·tube arch bridge-with an in-crement iteration approach is presented.The nonlinear efects 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 368 m,the effects of the parameters such as the nonlinearity of the aerostatic load,initial attack angle and the rise-span ratio an d lateral bracing on the lateral aerostatic stability of long‘span concrete-filled steel-tube arch bridges are finally discussed.

Key words: long-span concrete-filled steel-tube arch bridge, aerostatic efects, aerostatic stability, geometric non-linearity