摘要
提出了飞鸟式钢管混凝土桁式拱桥双重非线性分析有限元计算方法,建立了主跨为278 m的东莞水道特大桥的有限元计算模型,对其面内受力全过程和极限承载力进行了分析.分析结果表明,在极限承载力分析中,应考虑双重非线性问题;飞鸟式拱的钢管混凝土主拱可简化为固定拱计算.
The finite element method considering the double nonlinear property to analyze the behavior and ultimate capacity in - plan of the main truss arch of ＂fly - bird - type＂ CFST arch bridge was provided in this paper. The FE mode of the Dongguan channel bridge with span of 278 m is erected to analyze behavior and ultimate capacity. The results indicate that the double nonlinear should he considered during the analysis. The main arch of ＂fly - bird - type＂ CFST arch bridge can be considered as fixed arch to calculate.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第1期109-113,共5页
Journal of Fuzhou University(Natural Science Edition)
基金
交通部西部交通科技资助项目(2003-318-798-20-1)
福建省教育厅科研资助项目(JB04006)
关键词
拱桥
钢管混凝土
有限元
承载力
东莞
arch
concrete - filled steel tube
finite element
ultimate load - carrying capacity
Dongguan
