摘要
桥墩冲刷已被公认为桥梁水毁的一个重要原因,为了确保桥梁的安全和减少因大桥关闭引起的交通中断,准确评价桥梁冲刷深度从而采取相应对策措施显得非常必要。对目前大桥工程普遍采用的复合桥墩的冲刷深度进行研究,主要结合某一跨海大桥不同桥型方案(三塔斜拉、三塔悬索和双塔斜拉),采用SMS软件中的FESWMS模块,分析了在大桥运行期内潮流作用下复合桥墩周围最大可能冲刷深度,从而为工程设计提供理论依据。
Scour around bridge piers is a well-recognized cause of bridge failure. It is necessary to evaluate precisely the scour depth and take corresponding countermeasures to ensure the safety of bridges and minimize the disruption of traffic due to bridge closure. This paper is to investigate the scour depth around complex piers which are widely used in bridge engineering. FESWMS was employed to investigate the maximum potential scour around the complex piers for different bridge schemes （cable-stayed bridge with three pylons, suspension bridge and cable-stayed bridge with two pylons） of a sea-crossing bridge under the action of tide. The results may serve as a theoretical basis for engineering design.
出处
《水运工程》
北大核心
2009年第1期97-102,共6页
Port & Waterway Engineering
关键词
桥墩
局部冲刷
数学模型
跨海大桥
piers
local scour
mathematical model
sea-crossing bridge
