摘要
系杆拱桥的拱肋上作用有保向力和非保向力两种类型的荷载,采用能量法推导出中承式系杆拱桥侧倾稳定临界荷载的一般公式,并通过算例与有限元计算的结果进行了比较验证,获得的系杆拱桥侧倾稳定临界荷载的概念与裸拱侧倾稳定临界荷载是一致的。
Two types of load, directional force and non-directional force are considered on the arch rib of the tied arch bridge. In this paper, principle of energy is used to study the general formula of critical load for lateral collapsing of the half-through tied arch bridge. Comparison is made between energy method and finite element method. The concept for critical load of the lateral collapsing of tied arch bridge is as the same as the naked arch.
出处
《公路》
北大核心
2010年第4期55-58,共4页
Highway
基金
华南理工大学亚热带建筑科学国家重点实验室开发课题
课题编号2008KA07
关键词
拱桥
侧倾稳定
能量法
非保向力
临界荷载
arch bridge
stability of lateral collapsing
energy method
non-directional force
critical load
