双层交叉口桥梁结构设计

未来城市正朝着立体空间方向发展,立体交通将随处可见双层交叉口,而交叉口处桥面往往受到地面道路净高、桥墩等诸多因素的影响,因此,双层交叉口的结构设计显得尤为重要。以简州新城立体交通中双层交叉口为例,提出了三种不同的结构设计做法,并通过有限元模型进行分析和对比,得出一些定性和定量的工程结论,为类似工程提供借鉴。

Structural Design of Double-layer Intersection Bridge

The future city is developing in the direction of three-dimensional space.The three-dimensional transportation will be seen everywhere double-layer intersection.Moreover,the deck at intersection is often affected by many factors of ground road clearance,bridge piers and etc.Therefore,the structural design of double-layer intersection is very important.Based on an example of double-layer intersection in the three-dimensional transportation of Jianzhou New Town,three different structural design methods are proposed,and analyzed and compared by the finite element model.Some qualitative and quantitative engineering conclusions are obtained to provide the reference for the similar projects.