高速铁路跨越京杭运河水上服务区连续梁拱设计  

Design of Continuous Beam Arch for High-speed Railway Spanning Water Service Area of Beijing-Hangzhou Canal

作　　者：陈杰[1] CHEN Jie

机构地区：[1]中铁上海设计院集团有限公司,上海市200070

出　　处：《城市道桥与防洪》2022年第5期85-87,M0009,M0010,共5页Urban Roads Bridges & Flood Control

摘　　要：连续梁拱组合结构具有竖向刚度和动力性能良好、跨度大、建筑高度低、造型美观等优点,已在高速铁路建设中得到较为广泛的应用。连镇高铁镇江京杭运河特大桥主桥采用(76+136+76)m双线预应力混凝土连续梁拱。受铁路线路控制,该桥有两个特点:一是要跨越京杭运河水上服务区,二是桥面加宽满足运梁需要。以该桥为例,重点介绍了连续梁拱主梁结构的总体构造、静力计算分析和景观设计,为跨越复杂航道桥梁设计工程提供了经验和方法。The continuous beam arch composite structure has the advantages of vertical stiffness,good dynamic performance,large span,low building height and attractive appearance,and has been widely used in high-speed railway construction.The main bridge of Beijing-Hangzhou Canal Bridge in Zhenjiang Section of Lianyungang-Zhenjiang High-speed Railway is a(76+136+76)-m double-track prestressed concrete continuous beam arch.Controlled by the railway line,the bridge has two characteristics.One is to span the water service area of Beijing-Hangzhou Canal,and the other is to widen the deck to meet the needs of beam transportation.Taking this bridge as an example,the overall structure,static calculation and landscape design of the main girder of continuous beam arch are specially introduced,which provide the experience and method for the engineering design of bridge spanning a complex waterway.

关 键 词：高速铁路桥梁 连续梁拱 组合结构 结构设计 钢管混凝土 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]