东莞水道特大桥面内受力双重非线性有限元分析  

The double nonlinear finite element analysis of Dongguan channel bridge in plane

作　　者：孙潮[1] 郑怀颖[1] 陈宝春[1] 

机构地区：[1]福州大学土木建筑工程学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》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)

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.

关 键 词：拱桥 钢管混凝土 有限元 承载力 东莞 

分 类 号：TU399[建筑科学—结构工程]