大跨径拱与Y型刚构组合桥的横向联结系对全桥稳定性的影响研究  

Effect of Lateral Coupling System of Combination Bridge of Long-Span Arch and Y-style Frame on the Overall Stability of the Bridge

作　　者：夏衡 张庆明 谢华 

机构地区：[1]重庆高等级公路建设投资有限公司,重庆400074 [2]重庆交通建设集团,重庆400074 [3]重庆市勘察设计院,重庆400074

出　　处：《铁道建筑技术》2006年第6期55-57,共3页Railway Construction Technology

摘　　要：以重庆菜园坝长江大桥为例,利用有限元方法研究了大跨径拱与Y型刚构组合桥的横向联结系、横撑刚度对全桥稳定性的影响。结果表明,横撑的布置方式直接影响拱式组合体系的稳定性,而横撑刚度对全桥稳定性的影响不大。In this paper, taking Chongqing CaiYuanBa Yangtze Bridge as an example, the finite element method was used to study the effect of lateral coupling systems and braces on full bridge stability for combination bridge of long-span arch and Y-style frame. The results show that the set of lateral braces has direct influence on stability of arch-style combination system, while the influence of lateral brace rigidity is slight.

关 键 词：Y型刚构 横向联结系 横撑 稳定性 

分 类 号：U441[建筑科学—桥梁与隧道工程]