京沪高速铁路上海段桥梁设计

Design of Bridges in Shanghai Section of Beijing-Shanghai High-speed Railway

京沪高速铁路上海段除高速正线外,还包括上海站联络线、虹桥站普速客车联络线、虹桥动车组走行线等,设有4个铁路疏解区,各线以高架桥梁为主。简要介绍京沪高速铁路上海段的建设环境、地质条件、各种线路的主要技术标准以及铁路疏解区复杂的平立面关系。结合具体工点阐述本段桥梁设计的主要特点,着重介绍因受城市区域规划、道路、河道、航道等影响而产生的特殊桥梁结构,并对大跨度斜连续梁、道岔区桥梁、门式桥墩等代表性特殊结构进行说明。特殊桥梁结构的创新与应用为枢纽内铁路线形优化创造了条件,使高速铁路建设与城市规划更加融合。

In addition to the high-speed main line, there are also Shanghai Station connection line, Hongqiao Station connection line for ordinary-speed passenger trains, Hongqiao running line of multiple units and four discongesting regions in the Shanghai section of Beijing-Shanghai high-speed railway, on these lines elevated bridges are most common. This paper briefly introduces construction environment, geological conditions, main technical standards of various railway lines and complex plan and elevation relations in diseongesting areas, and describes the main characteristics of bridge design including concrete bridges, emphatically the special bridge structures such as large span skew continuous beam bridges, turnout section bridges, portal pears which have been constructed by the requirements of urban and regional planning, roads, rivers and channels in the Shanghai section of Beijing-Shanghai high-speed railway. The innovation and application of special bridge structures create conditions for linear optimization, and enhance to coordinate high-speed railway construction with city planning.